-3(1-3a)-4=-7-a

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Solution for -3(1-3a)-4=-7-a equation:


Simplifying
-3(1 + -3a) + -4 = -7 + -1a
(1 * -3 + -3a * -3) + -4 = -7 + -1a
(-3 + 9a) + -4 = -7 + -1a

Reorder the terms:
-3 + -4 + 9a = -7 + -1a

Combine like terms: -3 + -4 = -7
-7 + 9a = -7 + -1a

Add '7' to each side of the equation.
-7 + 7 + 9a = -7 + 7 + -1a

Combine like terms: -7 + 7 = 0
0 + 9a = -7 + 7 + -1a
9a = -7 + 7 + -1a

Combine like terms: -7 + 7 = 0
9a = 0 + -1a
9a = -1a

Solving
9a = -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
9a + a = -1a + a

Combine like terms: 9a + a = 10a
10a = -1a + a

Combine like terms: -1a + a = 0
10a = 0

Divide each side by '10'.
a = 0.0

Simplifying
a = 0.0

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