7a+13=20

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Solution for 7a+13=20 equation: 


Simplifying
7a + 13 = 20

Reorder the terms:
13 + 7a = 20

Solving
13 + 7a = 20

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + 7a = 20 + -13

Combine like terms: 13 + -13 = 0
0 + 7a = 20 + -13
7a = 20 + -13

Combine like terms: 20 + -13 = 7
7a = 7

Divide each side by '7'.
a = 1

Simplifying
a = 1

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