-3a+3+4a=7-21

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Solution for -3a+3+4a=7-21 equation:


Simplifying
-3a + 3 + 4a = 7 + -21

Reorder the terms:
3 + -3a + 4a = 7 + -21

Combine like terms: -3a + 4a = 1a
3 + 1a = 7 + -21

Combine like terms: 7 + -21 = -14
3 + 1a = -14

Solving
3 + 1a = -14

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 1a = -14 + -3

Combine like terms: 3 + -3 = 0
0 + 1a = -14 + -3
1a = -14 + -3

Combine like terms: -14 + -3 = -17
1a = -17

Divide each side by '1'.
a = -17

Simplifying
a = -17

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