8.5-7.1=x

Solution for 8.5-7.1=x equation:

Simplifying
8.5 + -7.1 = x

Combine like terms: 8.5 + -7.1 = 1.4
1.4 = x

Solving
1.4 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
1.4 + -1x = x + -1x

Combine like terms: x + -1x = 0
1.4 + -1x = 0

Add '-1.4' to each side of the equation.
1.4 + -1.4 + -1x = 0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -1x = 0 + -1.4
-1x = 0 + -1.4

Combine like terms: 0 + -1.4 = -1.4
-1x = -1.4

Divide each side by '-1'.
x = 1.4

Simplifying
x = 1.4