1.3x-4=2.1x+8

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Solution for 1.3x-4=2.1x+8 equation:


Simplifying
1.3x + -4 = 2.1x + 8

Reorder the terms:
-4 + 1.3x = 2.1x + 8

Reorder the terms:
-4 + 1.3x = 8 + 2.1x

Solving
-4 + 1.3x = 8 + 2.1x

Solving for variable 'x'.

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

Add '-2.1x' to each side of the equation.
-4 + 1.3x + -2.1x = 8 + 2.1x + -2.1x

Combine like terms: 1.3x + -2.1x = -0.8x
-4 + -0.8x = 8 + 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
-4 + -0.8x = 8 + 0.0
-4 + -0.8x = 8

Add '4' to each side of the equation.
-4 + 4 + -0.8x = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -0.8x = 8 + 4
-0.8x = 8 + 4

Combine like terms: 8 + 4 = 12
-0.8x = 12

Divide each side by '-0.8'.
x = -15

Simplifying
x = -15

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