(1.6+x)=X+8.7

Solution for (1.6+x)=X+8.7 equation:

Simplifying
(1.6 + x) = X + 8.7

Remove parenthesis around (1.6 + x)
1.6 + x = X + 8.7

Reorder the terms:
1.6 + x = 8.7 + X

Solving
1.6 + x = 8.7 + X

Solving for variable 'x'.

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

Add '-1.6' to each side of the equation.
1.6 + -1.6 + x = 8.7 + -1.6 + X

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + x = 8.7 + -1.6 + X
x = 8.7 + -1.6 + X

Combine like terms: 8.7 + -1.6 = 7.1
x = 7.1 + X

Simplifying
x = 7.1 + X