7x+21+63x+189=0

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Solution for 7x+21+63x+189=0 equation:


Simplifying
7x + 21 + 63x + 189 = 0

Reorder the terms:
21 + 189 + 7x + 63x = 0

Combine like terms: 21 + 189 = 210
210 + 7x + 63x = 0

Combine like terms: 7x + 63x = 70x
210 + 70x = 0

Solving
210 + 70x = 0

Solving for variable 'x'.

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

Add '-210' to each side of the equation.
210 + -210 + 70x = 0 + -210

Combine like terms: 210 + -210 = 0
0 + 70x = 0 + -210
70x = 0 + -210

Combine like terms: 0 + -210 = -210
70x = -210

Divide each side by '70'.
x = -3

Simplifying
x = -3

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