0=-7(-a+3)

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Solution for 0=-7(-a+3) equation:


Simplifying
0 = -7(-1a + 3)

Reorder the terms:
0 = -7(3 + -1a)
0 = (3 * -7 + -1a * -7)
0 = (-21 + 7a)

Solving
0 = -21 + 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.
0 + -7a = -21 + 7a + -7a
Remove the zero:
-7a = -21 + 7a + -7a

Combine like terms: 7a + -7a = 0
-7a = -21 + 0
-7a = -21

Divide each side by '-7'.
a = 3

Simplifying
a = 3

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