7x/8-9x/10=-3

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Solution for 7x/8-9x/10=-3 equation: 


x in (-oo:+oo)

(7*x)/8-((9*x)/10) = -3 // + 3

(7*x)/8-((9*x)/10)+3 = 0

(7*x)/8+(-9/10)*x+3 = 0

3-1/40*x = 0 // - 3

-1/40*x = -3 // : -1/40

x = -3/(-1/40)

x = 120

x = 120

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