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

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


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

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

Reorder the terms:
(3ax + -3x) + -7(a + -1) = 0
(3ax + -3x) + -7(a + -1) = 0

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

Reorder the terms:
7 + -7a + 3ax + -3x = 0

Solving
7 + -7a + 3ax + -3x = 0

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7a + 3ax + -7 + -3x = 0 + -7

Reorder the terms:
7 + -7 + -7a + 3ax + -3x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -7a + 3ax + -3x = 0 + -7
-7a + 3ax + -3x = 0 + -7

Combine like terms: 0 + -7 = -7
-7a + 3ax + -3x = -7

Add '3x' to each side of the equation.
-7a + 3ax + -3x + 3x = -7 + 3x

Combine like terms: -3x + 3x = 0
-7a + 3ax + 0 = -7 + 3x
-7a + 3ax = -7 + 3x

Reorder the terms:
7 + -7a + 3ax + -3x = -7 + 3x + 7 + -3x

Reorder the terms:
7 + -7a + 3ax + -3x = -7 + 7 + 3x + -3x

Combine like terms: -7 + 7 = 0
7 + -7a + 3ax + -3x = 0 + 3x + -3x
7 + -7a + 3ax + -3x = 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -7a + 3ax + -3x = 0

The solution to this equation could not be determined.

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