3x+10=-7x+90

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Solution for 3x+10=-7x+90 equation: 


x in (-oo:+oo)

3*x+10 = 90-7*x // - 90-7*x

3*x-(-7*x)-90+10 = 0

3*x+7*x-90+10 = 0

10*x-80 = 0 // + 80

10*x = 80 // : 10

x = 80/10

x = 8

x = 8

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