3((7x+8)/10)=4x-9

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Solution for 3((7x+8)/10)=4x-9 equation: 


x in (-oo:+oo)

3*((7*x+8)/10) = 4*x-9 // - 4*x-9

3*((7*x+8)/10)-(4*x)+9 = 0

3*((7*x+8)/10)-4*x+9 = 0

(3*(7*x+8))/10-4*x+9 = 0

(3*(7*x+8))/10+(-4*10*x)/10+(9*10)/10 = 0

3*(7*x+8)-4*10*x+9*10 = 0

24-19*x+90 = 0

114-19*x = 0

(114-19*x)/10 = 0

(114-19*x)/10 = 0 // * 10

114-19*x = 0

114-19*x = 0 // - 114

-19*x = -114 // : -19

x = -114/(-19)

x = 6

x = 6

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