13=7a+6a

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Solution for 13=7a+6a equation:


Simplifying
13 = 7a + 6a

Combine like terms: 7a + 6a = 13a
13 = 13a

Solving
13 = 13a

Solving for variable 'a'.

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

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

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

Add '-13' to each side of the equation.
13 + -13 + -13a = 0 + -13

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

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

Divide each side by '-13'.
a = 1

Simplifying
a = 1

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