-7=-x+3-3x

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Solution for -7=-x+3-3x equation:


Simplifying
-7 = -1x + 3 + -3x

Reorder the terms:
-7 = 3 + -1x + -3x

Combine like terms: -1x + -3x = -4x
-7 = 3 + -4x

Solving
-7 = 3 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-7 + 4x = 3 + -4x + 4x

Combine like terms: -4x + 4x = 0
-7 + 4x = 3 + 0
-7 + 4x = 3

Add '7' to each side of the equation.
-7 + 7 + 4x = 3 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 3 + 7
4x = 3 + 7

Combine like terms: 3 + 7 = 10
4x = 10

Divide each side by '4'.
x = 2.5

Simplifying
x = 2.5

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