If you had this equation, how would you move the 7.
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Transcript of If you had this equation, how would you move the 7.
![Page 1: If you had this equation, how would you move the 7.](https://reader030.fdocuments.net/reader030/viewer/2022020111/56649c735503460f94925ebd/html5/thumbnails/1.jpg)
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1243 xx 114721 xx 325 aa
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733 xx
If you had this equation,how would you move
the 7
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to the other sideof the equation?
733 xx
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You would subtract it . . .. . . wouldn’t you?
733 xx7 7
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This equation is probablydifferent from
733 xx
other equations you have solved.
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What makes it different?
733 xx
It is different becauseit has an x
on each side.
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How would you move
733 xx
the xfrom the right side
to the left?
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You would move the x
733 xx
exactly the same wayyou would move the 7.
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You would subtract it . . .
733 xxx x
. . . wouldn’t you?
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Now when you simplify. . .
733 xxx x
?3 xx xxx 23
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Now when you simplify. . .
733 xxx x
0 xx ? xx
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. . . the equation becomes
733 xx
the type of equation
x x
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. . . the equation becomesthe type of equation
732 x733 xx
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that you already knowhow to solve.
732 x3 3
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that you already knowhow to solve.
42 x2 2
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that you already knowhow to solve.
2x
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If you want to solve equations correctly
(and you do)(Don’t you?)you will get in the habitof checking solutions.
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Good solution! ?72323
Checking the solution:
733 xx?2x
?936
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Try this one:
119102 xxx9x9
11107 x10 10
217 x7 7
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Good solution!
Try this one:
3x ?3x119102 xx
Check your work !
?11391032 ?1127106
?1616
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You say you want one more?
1274 xx
Okay—here’s one more.
Did you check you answer?If you did, you know the solution is
.4x