0.7x-0.8x-1=2

Solution for 0.7x-0.8x-1=2 equation:

Simplifying
0.7x + -0.8x + -1 = 2

Reorder the terms:
-1 + 0.7x + -0.8x = 2

Combine like terms: 0.7x + -0.8x = -0.1x
-1 + -0.1x = 2

Solving
-1 + -0.1x = 2

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -0.1x = 2 + 1

Combine like terms: -1 + 1 = 0
0 + -0.1x = 2 + 1
-0.1x = 2 + 1

Combine like terms: 2 + 1 = 3
-0.1x = 3

Divide each side by '-0.1'.
x = -30

Simplifying
x = -30