Solve for x & y 2x-3y=8 2x+3y=4

1. Since 2x2x does not contain the variable to solve for, move it to the right side of the equation by subtracting 2x2x from both sides.−3y=−2x+8-3y=-2x+8Divide each term by −3-3 and simplify.
Divide each term in −3y=−2x+8-3y=-2x+8 by −3-3.−3y−3=−2x−3+8−3-3y-3=-2x-3+8-3Simplify the left side of the equation by canceling the common factors.
y=−2x−3+8−3y=-2x-3+8-3Simplify each term.
y=2x3−83

Sorry i only knew the first one 

The answer is 41.7 because 1.39 times 30 is 41.7