4.2=5.7-0.5x

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Solution for 4.2=5.7-0.5x equation:


Simplifying
4.2 = 5.7 + -0.5x

Solving
4.2 = 5.7 + -0.5x

Solving for variable 'x'.

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

Add '0.5x' to each side of the equation.
4.2 + 0.5x = 5.7 + -0.5x + 0.5x

Combine like terms: -0.5x + 0.5x = 0.0
4.2 + 0.5x = 5.7 + 0.0
4.2 + 0.5x = 5.7

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 0.5x = 5.7 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 0.5x = 5.7 + -4.2
0.5x = 5.7 + -4.2

Combine like terms: 5.7 + -4.2 = 1.5
0.5x = 1.5

Divide each side by '0.5'.
x = 3

Simplifying
x = 3

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