20+5a=7a

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Solution for 20+5a=7a equation:


Simplifying
20 + 5a = 7a

Solving
20 + 5a = 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
20 + 5a + -7a = 7a + -7a

Combine like terms: 5a + -7a = -2a
20 + -2a = 7a + -7a

Combine like terms: 7a + -7a = 0
20 + -2a = 0

Add '-20' to each side of the equation.
20 + -20 + -2a = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -2a = 0 + -20
-2a = 0 + -20

Combine like terms: 0 + -20 = -20
-2a = -20

Divide each side by '-2'.
a = 10

Simplifying
a = 10

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