13a+8=15a-4

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Solution for 13a+8=15a-4 equation:


Simplifying
13a + 8 = 15a + -4

Reorder the terms:
8 + 13a = 15a + -4

Reorder the terms:
8 + 13a = -4 + 15a

Solving
8 + 13a = -4 + 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
8 + 13a + -15a = -4 + 15a + -15a

Combine like terms: 13a + -15a = -2a
8 + -2a = -4 + 15a + -15a

Combine like terms: 15a + -15a = 0
8 + -2a = -4 + 0
8 + -2a = -4

Add '-8' to each side of the equation.
8 + -8 + -2a = -4 + -8

Combine like terms: 8 + -8 = 0
0 + -2a = -4 + -8
-2a = -4 + -8

Combine like terms: -4 + -8 = -12
-2a = -12

Divide each side by '-2'.
a = 6

Simplifying
a = 6

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