-2a+4+3a=9-20

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Solution for -2a+4+3a=9-20 equation:


Simplifying
-2a + 4 + 3a = 9 + -20

Reorder the terms:
4 + -2a + 3a = 9 + -20

Combine like terms: -2a + 3a = 1a
4 + 1a = 9 + -20

Combine like terms: 9 + -20 = -11
4 + 1a = -11

Solving
4 + 1a = -11

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 1a = -11 + -4

Combine like terms: 4 + -4 = 0
0 + 1a = -11 + -4
1a = -11 + -4

Combine like terms: -11 + -4 = -15
1a = -15

Divide each side by '1'.
a = -15

Simplifying
a = -15

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