2/5(12+x)=6-1/4(9-x)

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Solution for 2/5(12+x)=6-1/4(9-x) equation: 


x in (-oo:+oo)

(2/5)*(x+12) = 6-((1/4)*(9-x)) // - 6-((1/4)*(9-x))

(2/5)*(x+12)+(1/4)*(9-x)-6 = 0

2/5*(x+12)+1/4*(9-x)-6 = 0

2/5*(x+12)+1/4*(9-x)-6 = 0

3/20*x-6+141/20 = 0

3/20*x+21/20 = 0

3/20*x+21/20 = 0

3/20*x+21/20 = 0 // - 21/20

3/20*x = -21/20 // : 3/20

x = -21/20/3/20

x = -7

x = -7

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