4x = 16
Divide each side of the equation by 4:
x = 4
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4x = 72.divide both sides by 4x = 18
2y = 4x + 4y = 2x + 2
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
-4x=2y-16 +16 +16 (-4x+16)=(2y) /2 /2 y=-2x+8
4x - 1 = 15 Therefore, 4x = 16 x = 16/4 Therefore, x = 4