a-7-2a-8=4a-5

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Solution for a-7-2a-8=4a-5 equation:


Simplifying
a + -7 + -2a + -8 = 4a + -5

Reorder the terms:
-7 + -8 + a + -2a = 4a + -5

Combine like terms: -7 + -8 = -15
-15 + a + -2a = 4a + -5

Combine like terms: a + -2a = -1a
-15 + -1a = 4a + -5

Reorder the terms:
-15 + -1a = -5 + 4a

Solving
-15 + -1a = -5 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-15 + -1a + -4a = -5 + 4a + -4a

Combine like terms: -1a + -4a = -5a
-15 + -5a = -5 + 4a + -4a

Combine like terms: 4a + -4a = 0
-15 + -5a = -5 + 0
-15 + -5a = -5

Add '15' to each side of the equation.
-15 + 15 + -5a = -5 + 15

Combine like terms: -15 + 15 = 0
0 + -5a = -5 + 15
-5a = -5 + 15

Combine like terms: -5 + 15 = 10
-5a = 10

Divide each side by '-5'.
a = -2

Simplifying
a = -2

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