3a+13=10a-8

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Solution for 3a+13=10a-8 equation:


Simplifying
3a + 13 = 10a + -8

Reorder the terms:
13 + 3a = 10a + -8

Reorder the terms:
13 + 3a = -8 + 10a

Solving
13 + 3a = -8 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
13 + 3a + -10a = -8 + 10a + -10a

Combine like terms: 3a + -10a = -7a
13 + -7a = -8 + 10a + -10a

Combine like terms: 10a + -10a = 0
13 + -7a = -8 + 0
13 + -7a = -8

Add '-13' to each side of the equation.
13 + -13 + -7a = -8 + -13

Combine like terms: 13 + -13 = 0
0 + -7a = -8 + -13
-7a = -8 + -13

Combine like terms: -8 + -13 = -21
-7a = -21

Divide each side by '-7'.
a = 3

Simplifying
a = 3

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