15+4a-7=8a

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Solution for 15+4a-7=8a equation:


Simplifying
15 + 4a + -7 = 8a

Reorder the terms:
15 + -7 + 4a = 8a

Combine like terms: 15 + -7 = 8
8 + 4a = 8a

Solving
8 + 4a = 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
8 + 4a + -8a = 8a + -8a

Combine like terms: 4a + -8a = -4a
8 + -4a = 8a + -8a

Combine like terms: 8a + -8a = 0
8 + -4a = 0

Add '-8' to each side of the equation.
8 + -8 + -4a = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -4a = 0 + -8
-4a = 0 + -8

Combine like terms: 0 + -8 = -8
-4a = -8

Divide each side by '-4'.
a = 2

Simplifying
a = 2

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