-7(-5a+3)-a=217

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Solution for -7(-5a+3)-a=217 equation:


Simplifying
-7(-5a + 3) + -1a = 217

Reorder the terms:
-7(3 + -5a) + -1a = 217
(3 * -7 + -5a * -7) + -1a = 217
(-21 + 35a) + -1a = 217

Combine like terms: 35a + -1a = 34a
-21 + 34a = 217

Solving
-21 + 34a = 217

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 34a = 217 + 21

Combine like terms: -21 + 21 = 0
0 + 34a = 217 + 21
34a = 217 + 21

Combine like terms: 217 + 21 = 238
34a = 238

Divide each side by '34'.
a = 7

Simplifying
a = 7

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