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3x – 4y = 36 5x+2y = 8 What value does he correctly determine for x? Enter you answer in the box.

Please help I am really stuggling I will give you brainlest if you answer correctly.​

Respuesta :

here is your answer

x=4 and y=8

grantgreving1

Answer:

x = 4

Step-by-step explanation:

3x - 4y = 36

5x + 2y = 8

solve for y:

5x + 2y = 8

-5x           -5x

2y = 8 - 5x

/2        /2

y = 4 - 5/2x

substitute

3x - 4(y) = 36

3x - 4(4 - 5/2x) = 36

3x - 16 + 20/2x = 36

3x - 16 + 10x = 36

13x - 16 = 36

      +16   +16

13x = 52

/13     /13

x = 4

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