77=10a+7

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Solution for 77=10a+7 equation:


Simplifying
77 = 10a + 7

Reorder the terms:
77 = 7 + 10a

Solving
77 = 7 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
77 + -10a = 7 + 10a + -10a

Combine like terms: 10a + -10a = 0
77 + -10a = 7 + 0
77 + -10a = 7

Add '-77' to each side of the equation.
77 + -77 + -10a = 7 + -77

Combine like terms: 77 + -77 = 0
0 + -10a = 7 + -77
-10a = 7 + -77

Combine like terms: 7 + -77 = -70
-10a = -70

Divide each side by '-10'.
a = 7

Simplifying
a = 7

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