42=14(a-4)

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Solution for 42=14(a-4) equation:


Simplifying
42 = 14(a + -4)

Reorder the terms:
42 = 14(-4 + a)
42 = (-4 * 14 + a * 14)
42 = (-56 + 14a)

Solving
42 = -56 + 14a

Solving for variable 'a'.

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

Add '-14a' to each side of the equation.
42 + -14a = -56 + 14a + -14a

Combine like terms: 14a + -14a = 0
42 + -14a = -56 + 0
42 + -14a = -56

Add '-42' to each side of the equation.
42 + -42 + -14a = -56 + -42

Combine like terms: 42 + -42 = 0
0 + -14a = -56 + -42
-14a = -56 + -42

Combine like terms: -56 + -42 = -98
-14a = -98

Divide each side by '-14'.
a = 7

Simplifying
a = 7

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