-a+7=2a-a

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Solution for -a+7=2a-a equation:


Simplifying
-1a + 7 = 2a + -1a

Reorder the terms:
7 + -1a = 2a + -1a

Combine like terms: 2a + -1a = 1a
7 + -1a = 1a

Solving
7 + -1a = 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
7 + -1a + -1a = 1a + -1a

Combine like terms: -1a + -1a = -2a
7 + -2a = 1a + -1a

Combine like terms: 1a + -1a = 0
7 + -2a = 0

Add '-7' to each side of the equation.
7 + -7 + -2a = 0 + -7

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

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

Divide each side by '-2'.
a = 3.5

Simplifying
a = 3.5

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