13a+7=4(a+4)

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Solution for 13a+7=4(a+4) equation:


Simplifying
13a + 7 = 4(a + 4)

Reorder the terms:
7 + 13a = 4(a + 4)

Reorder the terms:
7 + 13a = 4(4 + a)
7 + 13a = (4 * 4 + a * 4)
7 + 13a = (16 + 4a)

Solving
7 + 13a = 16 + 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.
7 + 13a + -4a = 16 + 4a + -4a

Combine like terms: 13a + -4a = 9a
7 + 9a = 16 + 4a + -4a

Combine like terms: 4a + -4a = 0
7 + 9a = 16 + 0
7 + 9a = 16

Add '-7' to each side of the equation.
7 + -7 + 9a = 16 + -7

Combine like terms: 7 + -7 = 0
0 + 9a = 16 + -7
9a = 16 + -7

Combine like terms: 16 + -7 = 9
9a = 9

Divide each side by '9'.
a = 1

Simplifying
a = 1

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