-3(-2+a)-4a+15=-7

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Solution for -3(-2+a)-4a+15=-7 equation:


Simplifying
-3(-2 + a) + -4a + 15 = -7
(-2 * -3 + a * -3) + -4a + 15 = -7
(6 + -3a) + -4a + 15 = -7

Reorder the terms:
6 + 15 + -3a + -4a = -7

Combine like terms: 6 + 15 = 21
21 + -3a + -4a = -7

Combine like terms: -3a + -4a = -7a
21 + -7a = -7

Solving
21 + -7a = -7

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 + -7a = -7 + -21

Combine like terms: 21 + -21 = 0
0 + -7a = -7 + -21
-7a = -7 + -21

Combine like terms: -7 + -21 = -28
-7a = -28

Divide each side by '-7'.
a = 4

Simplifying
a = 4

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