4/5*x-7/10*x=4

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Solution for 4/5*x-7/10*x=4 equation: 


x in (-oo:+oo)

(4/5)*x-((7/10)*x) = 4 // - 4

(4/5)*x-((7/10)*x)-4 = 0

(4/5)*x+(-7/10)*x-4 = 0

1/10*x-4 = 0 // + 4

1/10*x = 4 // : 1/10

x = 4/1/10

x = 40

x = 40

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