8x+21x-143=123

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Solution for 8x+21x-143=123 equation:


Simplifying
8x + 21x + -143 = 123

Reorder the terms:
-143 + 8x + 21x = 123

Combine like terms: 8x + 21x = 29x
-143 + 29x = 123

Solving
-143 + 29x = 123

Solving for variable 'x'.

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

Add '143' to each side of the equation.
-143 + 143 + 29x = 123 + 143

Combine like terms: -143 + 143 = 0
0 + 29x = 123 + 143
29x = 123 + 143

Combine like terms: 123 + 143 = 266
29x = 266

Divide each side by '29'.
x = 9.172413793

Simplifying
x = 9.172413793

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