20x+140=21x+147

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Solution for 20x+140=21x+147 equation:


Simplifying
20x + 140 = 21x + 147

Reorder the terms:
140 + 20x = 21x + 147

Reorder the terms:
140 + 20x = 147 + 21x

Solving
140 + 20x = 147 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
140 + 20x + -21x = 147 + 21x + -21x

Combine like terms: 20x + -21x = -1x
140 + -1x = 147 + 21x + -21x

Combine like terms: 21x + -21x = 0
140 + -1x = 147 + 0
140 + -1x = 147

Add '-140' to each side of the equation.
140 + -140 + -1x = 147 + -140

Combine like terms: 140 + -140 = 0
0 + -1x = 147 + -140
-1x = 147 + -140

Combine like terms: 147 + -140 = 7
-1x = 7

Divide each side by '-1'.
x = -7

Simplifying
x = -7

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