-0.7y-1.6=2.1y+1.2

Solution for -0.7y-1.6=2.1y+1.2 equation:

Simplifying
-0.7y + -1.6 = 2.1y + 1.2

Reorder the terms:
-1.6 + -0.7y = 2.1y + 1.2

Reorder the terms:
-1.6 + -0.7y = 1.2 + 2.1y

Solving
-1.6 + -0.7y = 1.2 + 2.1y

Solving for variable 'y'.

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

Add '-2.1y' to each side of the equation.
-1.6 + -0.7y + -2.1y = 1.2 + 2.1y + -2.1y

Combine like terms: -0.7y + -2.1y = -2.8y
-1.6 + -2.8y = 1.2 + 2.1y + -2.1y

Combine like terms: 2.1y + -2.1y = 0.0
-1.6 + -2.8y = 1.2 + 0.0
-1.6 + -2.8y = 1.2

Add '1.6' to each side of the equation.
-1.6 + 1.6 + -2.8y = 1.2 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
0.0 + -2.8y = 1.2 + 1.6
-2.8y = 1.2 + 1.6

Combine like terms: 1.2 + 1.6 = 2.8
-2.8y = 2.8

Divide each side by '-2.8'.
y = -1

Simplifying
y = -1