3a+13=2a+4

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Solution for 3a+13=2a+4 equation:


Simplifying
3a + 13 = 2a + 4

Reorder the terms:
13 + 3a = 2a + 4

Reorder the terms:
13 + 3a = 4 + 2a

Solving
13 + 3a = 4 + 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.
13 + 3a + -2a = 4 + 2a + -2a

Combine like terms: 3a + -2a = 1a
13 + 1a = 4 + 2a + -2a

Combine like terms: 2a + -2a = 0
13 + 1a = 4 + 0
13 + 1a = 4

Add '-13' to each side of the equation.
13 + -13 + 1a = 4 + -13

Combine like terms: 13 + -13 = 0
0 + 1a = 4 + -13
1a = 4 + -13

Combine like terms: 4 + -13 = -9
1a = -9

Divide each side by '1'.
a = -9

Simplifying
a = -9

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