0.7x-18=1.3x-21

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Solution for 0.7x-18=1.3x-21 equation:


Simplifying
0.7x + -18 = 1.3x + -21

Reorder the terms:
-18 + 0.7x = 1.3x + -21

Reorder the terms:
-18 + 0.7x = -21 + 1.3x

Solving
-18 + 0.7x = -21 + 1.3x

Solving for variable 'x'.

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

Add '-1.3x' to each side of the equation.
-18 + 0.7x + -1.3x = -21 + 1.3x + -1.3x

Combine like terms: 0.7x + -1.3x = -0.6x
-18 + -0.6x = -21 + 1.3x + -1.3x

Combine like terms: 1.3x + -1.3x = 0.0
-18 + -0.6x = -21 + 0.0
-18 + -0.6x = -21

Add '18' to each side of the equation.
-18 + 18 + -0.6x = -21 + 18

Combine like terms: -18 + 18 = 0
0 + -0.6x = -21 + 18
-0.6x = -21 + 18

Combine like terms: -21 + 18 = -3
-0.6x = -3

Divide each side by '-0.6'.
x = 5

Simplifying
x = 5

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