7(a-4)=28

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Solution for 7(a-4)=28 equation:


Simplifying
7(a + -4) = 28

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

Solving
-28 + 7a = 28

Solving for variable 'a'.

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

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

Combine like terms: -28 + 28 = 0
0 + 7a = 28 + 28
7a = 28 + 28

Combine like terms: 28 + 28 = 56
7a = 56

Divide each side by '7'.
a = 8

Simplifying
a = 8

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