Solve 2.1y+2=0.7y+0.3y-3.5

$$2.1 y + 2 = 0.7 y + 0.3 y - 3.5$$

Solve for y

$$y=-5$$

Steps for Solving Linear Equation

Combine 0.7y and 0.3y to get y.

$$2.1y+2=y-3.5$$

Subtract y from both sides.

$$2.1y+2-y=-3.5$$

Combine 2.1y and -y to get 1.1y.

$$1.1y+2=-3.5$$

Subtract 2 from both sides.

$$1.1y=-3.5-2$$

Subtract 2 from -3.5 to get -5.5.

$$1.1y=-5.5$$

Divide both sides by 1.1.

$$y=\frac{-5.5}{1.1}$$

Expand \frac{-5.5}{1.1} by multiplying both numerator and the denominator by 10.

$$y=\frac{-55}{11}$$

Divide -55 by 11 to get -5.

$$y=-5$$