7(a+3)=70

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Solution for 7(a+3)=70 equation: 


Simplifying
7(a + 3) = 70

Reorder the terms:
7(3 + a) = 70
(3 * 7 + a * 7) = 70
(21 + 7a) = 70

Solving
21 + 7a = 70

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-21' to each side of the equation.
21 + -21 + 7a = 70 + -21

Combine like terms: 21 + -21 = 0
0 + 7a = 70 + -21
7a = 70 + -21

Combine like terms: 70 + -21 = 49
7a = 49

Divide each side by '7'.
a = 7

Simplifying
a = 7

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