4.2=1+8x

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Solution for 4.2=1+8x equation:


Simplifying
4.2 = 1 + 8x

Solving
4.2 = 1 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
4.2 + -8x = 1 + 8x + -8x

Combine like terms: 8x + -8x = 0
4.2 + -8x = 1 + 0
4.2 + -8x = 1

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -8x = 1 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -8x = 1 + -4.2
-8x = 1 + -4.2

Combine like terms: 1 + -4.2 = -3.2
-8x = -3.2

Divide each side by '-8'.
x = 0.4

Simplifying
x = 0.4

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