Find the value of a in each problem.
a) 3 x 52 x a = a x 2 x 78
b) 5a - 25 = 50
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Step-by-step explanation:
(a) 156×a=a×156
a^2 = 156×156
a=14×14
a=156
(b) 5a = 50+25
5a = 75
a = 75/5
a = 15
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