.8x+20=.6x+21

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Solution for .8x+20=.6x+21 equation:


Simplifying
0.8x + 20 = 0.6x + 21

Reorder the terms:
20 + 0.8x = 0.6x + 21

Reorder the terms:
20 + 0.8x = 21 + 0.6x

Solving
20 + 0.8x = 21 + 0.6x

Solving for variable 'x'.

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

Add '-0.6x' to each side of the equation.
20 + 0.8x + -0.6x = 21 + 0.6x + -0.6x

Combine like terms: 0.8x + -0.6x = 0.2x
20 + 0.2x = 21 + 0.6x + -0.6x

Combine like terms: 0.6x + -0.6x = 0.0
20 + 0.2x = 21 + 0.0
20 + 0.2x = 21

Add '-20' to each side of the equation.
20 + -20 + 0.2x = 21 + -20

Combine like terms: 20 + -20 = 0
0 + 0.2x = 21 + -20
0.2x = 21 + -20

Combine like terms: 21 + -20 = 1
0.2x = 1

Divide each side by '0.2'.
x = 5

Simplifying
x = 5

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