7(10+5a)=210

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Solution for 7(10+5a)=210 equation: 


a in (-oo:+oo)

7*(5*a+10) = 210 // - 210

7*(5*a+10)-210 = 0

7*(5*a+10)-210 = 0

35*a-140 = 0

35*a-140 = 0

35*a-140 = 0 // + 140

35*a = 140 // : 35

a = 140/35

a = 4

a = 4

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