5x+1-7x=-21

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Solution for 5x+1-7x=-21 equation:


Simplifying
5x + 1 + -7x = -21

Reorder the terms:
1 + 5x + -7x = -21

Combine like terms: 5x + -7x = -2x
1 + -2x = -21

Solving
1 + -2x = -21

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + -2x = -21 + -1

Combine like terms: 1 + -1 = 0
0 + -2x = -21 + -1
-2x = -21 + -1

Combine like terms: -21 + -1 = -22
-2x = -22

Divide each side by '-2'.
x = 11

Simplifying
x = 11

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