4(5+7k)=160

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Solution for 4(5+7k)=160 equation: 


k in (-oo:+oo)

4*(7*k+5) = 160 // - 160

4*(7*k+5)-160 = 0

4*(7*k+5)-160 = 0

28*k-140 = 0

28*k-140 = 0

28*k-140 = 0 // + 140

28*k = 140 // : 28

k = 140/28

k = 5

k = 5

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