7(a-16)=21

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Solution for 7(a-16)=21 equation:


Simplifying
7(a + -16) = 21

Reorder the terms:
7(-16 + a) = 21
(-16 * 7 + a * 7) = 21
(-112 + 7a) = 21

Solving
-112 + 7a = 21

Solving for variable 'a'.

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

Add '112' to each side of the equation.
-112 + 112 + 7a = 21 + 112

Combine like terms: -112 + 112 = 0
0 + 7a = 21 + 112
7a = 21 + 112

Combine like terms: 21 + 112 = 133
7a = 133

Divide each side by '7'.
a = 19

Simplifying
a = 19

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