2(a-7)-7=

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Solution for 2(a-7)-7= equation:


Simplifying
2(a + -7) + -7 = 0

Reorder the terms:
2(-7 + a) + -7 = 0
(-7 * 2 + a * 2) + -7 = 0
(-14 + 2a) + -7 = 0

Reorder the terms:
-14 + -7 + 2a = 0

Combine like terms: -14 + -7 = -21
-21 + 2a = 0

Solving
-21 + 2a = 0

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 + 2a = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 2a = 0 + 21
2a = 0 + 21

Combine like terms: 0 + 21 = 21
2a = 21

Divide each side by '2'.
a = 10.5

Simplifying
a = 10.5

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