7a+13=57-4a

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Solution for 7a+13=57-4a equation:


Simplifying
7a + 13 = 57 + -4a

Reorder the terms:
13 + 7a = 57 + -4a

Solving
13 + 7a = 57 + -4a

Solving for variable 'a'.

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

Add '4a' to each side of the equation.
13 + 7a + 4a = 57 + -4a + 4a

Combine like terms: 7a + 4a = 11a
13 + 11a = 57 + -4a + 4a

Combine like terms: -4a + 4a = 0
13 + 11a = 57 + 0
13 + 11a = 57

Add '-13' to each side of the equation.
13 + -13 + 11a = 57 + -13

Combine like terms: 13 + -13 = 0
0 + 11a = 57 + -13
11a = 57 + -13

Combine like terms: 57 + -13 = 44
11a = 44

Divide each side by '11'.
a = 4

Simplifying
a = 4

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