7a-4=2a+20

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Solution for 7a-4=2a+20 equation:


Simplifying
7a + -4 = 2a + 20

Reorder the terms:
-4 + 7a = 2a + 20

Reorder the terms:
-4 + 7a = 20 + 2a

Solving
-4 + 7a = 20 + 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.
-4 + 7a + -2a = 20 + 2a + -2a

Combine like terms: 7a + -2a = 5a
-4 + 5a = 20 + 2a + -2a

Combine like terms: 2a + -2a = 0
-4 + 5a = 20 + 0
-4 + 5a = 20

Add '4' to each side of the equation.
-4 + 4 + 5a = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 5a = 20 + 4
5a = 20 + 4

Combine like terms: 20 + 4 = 24
5a = 24

Divide each side by '5'.
a = 4.8

Simplifying
a = 4.8

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