-2.1=-0.7x+0.4x

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Solution for -2.1=-0.7x+0.4x equation: 


Simplifying
-2.1 = -0.7x + 0.4x

Combine like terms: -0.7x + 0.4x = -0.3x
-2.1 = -0.3x

Solving
-2.1 = -0.3x

Solving for variable 'x'.

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

Add '0.3x' to each side of the equation.
-2.1 + 0.3x = -0.3x + 0.3x

Combine like terms: -0.3x + 0.3x = 0.0
-2.1 + 0.3x = 0.0

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 0.3x = 0.0 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 0.3x = 0.0 + 2.1
0.3x = 0.0 + 2.1

Combine like terms: 0.0 + 2.1 = 2.1
0.3x = 2.1

Divide each side by '0.3'.
x = 7

Simplifying
x = 7

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