1.2x+3.4=0.4-4.2

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Solution for 1.2x+3.4=0.4-4.2 equation:


Simplifying
1.2x + 3.4 = 0.4 + -4.2

Reorder the terms:
3.4 + 1.2x = 0.4 + -4.2

Combine like terms: 0.4 + -4.2 = -3.8
3.4 + 1.2x = -3.8

Solving
3.4 + 1.2x = -3.8

Solving for variable 'x'.

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

Add '-3.4' to each side of the equation.
3.4 + -3.4 + 1.2x = -3.8 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + 1.2x = -3.8 + -3.4
1.2x = -3.8 + -3.4

Combine like terms: -3.8 + -3.4 = -7.2
1.2x = -7.2

Divide each side by '1.2'.
x = -6

Simplifying
x = -6

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