-187=-7(1-8a)+4a

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Solution for -187=-7(1-8a)+4a equation:


Simplifying
-187 = -7(1 + -8a) + 4a
-187 = (1 * -7 + -8a * -7) + 4a
-187 = (-7 + 56a) + 4a

Combine like terms: 56a + 4a = 60a
-187 = -7 + 60a

Solving
-187 = -7 + 60a

Solving for variable 'a'.

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

Add '-60a' to each side of the equation.
-187 + -60a = -7 + 60a + -60a

Combine like terms: 60a + -60a = 0
-187 + -60a = -7 + 0
-187 + -60a = -7

Add '187' to each side of the equation.
-187 + 187 + -60a = -7 + 187

Combine like terms: -187 + 187 = 0
0 + -60a = -7 + 187
-60a = -7 + 187

Combine like terms: -7 + 187 = 180
-60a = 180

Divide each side by '-60'.
a = -3

Simplifying
a = -3

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