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Name

Mehak chugh

Class 9th b

Roll no: 16

Ppt on linear equation in

two variable

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LHS RHS4x+3 = 15

2x+5y = 0

-2x+3y= 6

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Equation

2x+3y=9

X+y/4-4=0

5=2x

Y-2=02+x/3=0

A B C

2 3 -9

1 1/4 -4

2 0 5

0 1 -21/3 0 2

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5X+2=0 -5/2

-5 -4 -3 -2 -1 0 1 2 3 4 5

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5+ -2 =15 5+ -2 -5=15-5 -2 =10 -2 /2=10/2

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Example-p( )=2 +3(1)If =3 2 +3 =(2x3)+(3x )=12 6+3 =12 =2,

therefore the solution is (3,2)

(2)If =2 2 +3 =(2x2)+(3xy)=12 4+3 =12 =8/3,

therefore the solution is (2,8/3)

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.

X+2Y=6

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Graph for the equation-x+y-2=0If y=2;x=0

If y=4;x=-2If y=3;x=-1If y=1;x=1

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y=4

2y-7=12y-7+7=1+72y=82y/2=8/2y=4

x

y

(2y-7=1)

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x

y

3x-10=5

3x=15

x=5

x=5

(

3x-10=5)

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Examples and solutions

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Examples and solutions

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Examples and solutions

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Examples and solutions

y=-4

x

y

(2x+8=0)

(-4,3)

(-4,-3)

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SUMMARY

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