Question

Solve for x when y = 4 2x + 2y = 20

Answer 1

Answer:

$x=6$

Step-by-step explanation:

$2x+2(4)=20$

$2x+8=20$

Subtract both sides by 8

$2x=12$

Divide both sides by 2 to get x alone

$x=6$

Hope this is helpful

Answer 2

Answer:

x=6

Step-by-step explanation:

2x + 2y = 20

Let y=4

2x +2(4) = 20

Multiply

2x+8 = 20

Subtract 8 from each side

2x+8-8= 20-8

2x = 12

Divide by  2

2x/2 = 12/2

x = 6