Step 1: solve the equation for 2x
-2x-2y=-84 → -2x-2y=-84
2x+3y=97 Move over the 3y → 2x=97-3y
Since we move the 3y to the left it will have a negative sign.
Step 2: substitute the give value of 2x into the equation -2x-2y=-84
-(97-3y)-2y=-84
Step 3: solve for y
y= 13
Answer: C) y=13
