1+a=2a-4-8+9

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Solution for 1+a=2a-4-8+9 equation:


Simplifying
1 + a = 2a + -4 + -8 + 9

Reorder the terms:
1 + a = -4 + -8 + 9 + 2a

Combine like terms: -4 + -8 = -12
1 + a = -12 + 9 + 2a

Combine like terms: -12 + 9 = -3
1 + a = -3 + 2a

Solving
1 + a = -3 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
1 + a + -2a = -3 + 2a + -2a

Combine like terms: a + -2a = -1a
1 + -1a = -3 + 2a + -2a

Combine like terms: 2a + -2a = 0
1 + -1a = -3 + 0
1 + -1a = -3

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

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

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

Divide each side by '-1'.
a = 4

Simplifying
a = 4

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