7(a+4)=3(3+3a)

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Solution for 7(a+4)=3(3+3a) equation:


Simplifying
7(a + 4) = 3(3 + 3a)

Reorder the terms:
7(4 + a) = 3(3 + 3a)
(4 * 7 + a * 7) = 3(3 + 3a)
(28 + 7a) = 3(3 + 3a)
28 + 7a = (3 * 3 + 3a * 3)
28 + 7a = (9 + 9a)

Solving
28 + 7a = 9 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
28 + 7a + -9a = 9 + 9a + -9a

Combine like terms: 7a + -9a = -2a
28 + -2a = 9 + 9a + -9a

Combine like terms: 9a + -9a = 0
28 + -2a = 9 + 0
28 + -2a = 9

Add '-28' to each side of the equation.
28 + -28 + -2a = 9 + -28

Combine like terms: 28 + -28 = 0
0 + -2a = 9 + -28
-2a = 9 + -28

Combine like terms: 9 + -28 = -19
-2a = -19

Divide each side by '-2'.
a = 9.5

Simplifying
a = 9.5

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