42=7a-14

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Solution for 42=7a-14 equation:


Simplifying
42 = 7a + -14

Reorder the terms:
42 = -14 + 7a

Solving
42 = -14 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
42 + -7a = -14 + 7a + -7a

Combine like terms: 7a + -7a = 0
42 + -7a = -14 + 0
42 + -7a = -14

Add '-42' to each side of the equation.
42 + -42 + -7a = -14 + -42

Combine like terms: 42 + -42 = 0
0 + -7a = -14 + -42
-7a = -14 + -42

Combine like terms: -14 + -42 = -56
-7a = -56

Divide each side by '-7'.
a = 8

Simplifying
a = 8

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