1/2(4x-12)+3x=-9/4

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Solution for 1/2(4x-12)+3x=-9/4 equation: 


x in (-oo:+oo)

(1/2)*(4*x-12)+3*x = -9/4 // + -9/4

(1/2)*(4*x-12)+3*x-(-9/4) = 0

(1/2)*(4*x-12)+3*x+9/4 = 0

1/2*(4*x-12)+3*x+9/4 = 0

(1/2*4*(4*x-12))/4+(3*4*x)/4+9/4 = 0

1/2*4*(4*x-12)+3*4*x+9 = 0

20*x-24+9 = 0

20*x-15 = 0

(20*x-15)/4 = 0

(20*x-15)/4 = 0 // * 4

20*x-15 = 0

20*x-15 = 0 // + 15

20*x = 15 // : 20

x = 15/20

x = 3/4

x = 3/4

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