90-4x=1/4(180-x)

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Solution for 90-4x=1/4(180-x) equation: 


x in (-oo:+oo)

90-(4*x) = (1/4)*(180-x) // - (1/4)*(180-x)

90-((1/4)*(180-x))-(4*x) = 0

(-1/4)*(180-x)-4*x+90 = 0

90-1/4*(180-x)-4*x = 0

90-1/4*(180-x)-4*x = 0

90-15/4*x-45 = 0

45-15/4*x = 0

45-15/4*x = 0

45-15/4*x = 0 // - 45

-15/4*x = -45 // : -15/4

x = -45/(-15/4)

x = 12

x = 12

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