-3(7a-1)=-4a-31

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Solution for -3(7a-1)=-4a-31 equation:


Simplifying
-3(7a + -1) = -4a + -31

Reorder the terms:
-3(-1 + 7a) = -4a + -31
(-1 * -3 + 7a * -3) = -4a + -31
(3 + -21a) = -4a + -31

Reorder the terms:
3 + -21a = -31 + -4a

Solving
3 + -21a = -31 + -4a

Solving for variable 'a'.

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

Add '4a' to each side of the equation.
3 + -21a + 4a = -31 + -4a + 4a

Combine like terms: -21a + 4a = -17a
3 + -17a = -31 + -4a + 4a

Combine like terms: -4a + 4a = 0
3 + -17a = -31 + 0
3 + -17a = -31

Add '-3' to each side of the equation.
3 + -3 + -17a = -31 + -3

Combine like terms: 3 + -3 = 0
0 + -17a = -31 + -3
-17a = -31 + -3

Combine like terms: -31 + -3 = -34
-17a = -34

Divide each side by '-17'.
a = 2

Simplifying
a = 2

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