Question

solve for x and y by elimination method
b) -3x + 2y= 6
3x + 5y=36

Answer 1

Answer:

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Step-by-step explanation:

see image below...

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Answer 2

Step-by-step explanation:

-3x+2y=6. 1

3x+5y=36. 2

multiply by (-)in equation 1

-(3x+5y=36)

-3x -5 y. = -36 3

now subtract e q 1 from e q 3

-3x-5y= -36

-3 x+2y=6

+. -. -

_________

0x -7 y =. -42

7y=. -42

y = -42\7

y= -6

now put y in eq 1

-3 x +2(-6)=6

-3x. -12 =6

-3x = 6+12

-3x =18

x = -18/3

x = -6