-231=-5(7a-7)-3a

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Solution for -231=-5(7a-7)-3a equation:


Simplifying
-231 = -5(7a + -7) + -3a

Reorder the terms:
-231 = -5(-7 + 7a) + -3a
-231 = (-7 * -5 + 7a * -5) + -3a
-231 = (35 + -35a) + -3a

Combine like terms: -35a + -3a = -38a
-231 = 35 + -38a

Solving
-231 = 35 + -38a

Solving for variable 'a'.

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

Add '38a' to each side of the equation.
-231 + 38a = 35 + -38a + 38a

Combine like terms: -38a + 38a = 0
-231 + 38a = 35 + 0
-231 + 38a = 35

Add '231' to each side of the equation.
-231 + 231 + 38a = 35 + 231

Combine like terms: -231 + 231 = 0
0 + 38a = 35 + 231
38a = 35 + 231

Combine like terms: 35 + 231 = 266
38a = 266

Divide each side by '38'.
a = 7

Simplifying
a = 7

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