4-a+2+5a=11-20

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Solution for 4-a+2+5a=11-20 equation:


Simplifying
4 + -1a + 2 + 5a = 11 + -20

Reorder the terms:
4 + 2 + -1a + 5a = 11 + -20

Combine like terms: 4 + 2 = 6
6 + -1a + 5a = 11 + -20

Combine like terms: -1a + 5a = 4a
6 + 4a = 11 + -20

Combine like terms: 11 + -20 = -9
6 + 4a = -9

Solving
6 + 4a = -9

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -6 + 4a = -9 + -6

Combine like terms: 6 + -6 = 0
0 + 4a = -9 + -6
4a = -9 + -6

Combine like terms: -9 + -6 = -15
4a = -15

Divide each side by '4'.
a = -3.75

Simplifying
a = -3.75

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