-13=5(1+4a)-2a

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Solution for -13=5(1+4a)-2a equation:


Simplifying
-13 = 5(1 + 4a) + -2a
-13 = (1 * 5 + 4a * 5) + -2a
-13 = (5 + 20a) + -2a

Combine like terms: 20a + -2a = 18a
-13 = 5 + 18a

Solving
-13 = 5 + 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
-13 + -18a = 5 + 18a + -18a

Combine like terms: 18a + -18a = 0
-13 + -18a = 5 + 0
-13 + -18a = 5

Add '13' to each side of the equation.
-13 + 13 + -18a = 5 + 13

Combine like terms: -13 + 13 = 0
0 + -18a = 5 + 13
-18a = 5 + 13

Combine like terms: 5 + 13 = 18
-18a = 18

Divide each side by '-18'.
a = -1

Simplifying
a = -1

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