-105=5(1-2a)-10

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Solution for -105=5(1-2a)-10 equation:


Simplifying
-105 = 5(1 + -2a) + -10
-105 = (1 * 5 + -2a * 5) + -10
-105 = (5 + -10a) + -10

Reorder the terms:
-105 = 5 + -10 + -10a

Combine like terms: 5 + -10 = -5
-105 = -5 + -10a

Solving
-105 = -5 + -10a

Solving for variable 'a'.

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

Add '10a' to each side of the equation.
-105 + 10a = -5 + -10a + 10a

Combine like terms: -10a + 10a = 0
-105 + 10a = -5 + 0
-105 + 10a = -5

Add '105' to each side of the equation.
-105 + 105 + 10a = -5 + 105

Combine like terms: -105 + 105 = 0
0 + 10a = -5 + 105
10a = -5 + 105

Combine like terms: -5 + 105 = 100
10a = 100

Divide each side by '10'.
a = 10

Simplifying
a = 10

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