1-5x-7=4

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Solution for 1-5x-7=4 equation: 


Simplifying
1 + -5x + -7 = 4

Reorder the terms:
1 + -7 + -5x = 4

Combine like terms: 1 + -7 = -6
-6 + -5x = 4

Solving
-6 + -5x = 4

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -5x = 4 + 6

Combine like terms: -6 + 6 = 0
0 + -5x = 4 + 6
-5x = 4 + 6

Combine like terms: 4 + 6 = 10
-5x = 10

Divide each side by '-5'.
x = -2

Simplifying
x = -2

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