40-(a-3)=77

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Solution for 40-(a-3)=77 equation:


Simplifying
40 + -1(a + -3) = 77

Reorder the terms:
40 + -1(-3 + a) = 77
40 + (-3 * -1 + a * -1) = 77
40 + (3 + -1a) = 77

Combine like terms: 40 + 3 = 43
43 + -1a = 77

Solving
43 + -1a = 77

Solving for variable 'a'.

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

Add '-43' to each side of the equation.
43 + -43 + -1a = 77 + -43

Combine like terms: 43 + -43 = 0
0 + -1a = 77 + -43
-1a = 77 + -43

Combine like terms: 77 + -43 = 34
-1a = 34

Divide each side by '-1'.
a = -34

Simplifying
a = -34

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