3(a)+7(8)=77

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Solution for 3(a)+7(8)=77 equation: 


Simplifying
3(a) + 7(8) = 77

Multiply 7 * 8
3a + 56 = 77

Reorder the terms:
56 + 3a = 77

Solving
56 + 3a = 77

Solving for variable 'a'.

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

Add '-56' to each side of the equation.
56 + -56 + 3a = 77 + -56

Combine like terms: 56 + -56 = 0
0 + 3a = 77 + -56
3a = 77 + -56

Combine like terms: 77 + -56 = 21
3a = 21

Divide each side by '3'.
a = 7

Simplifying
a = 7

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