In which step was an error made? O in step 1, the multiplied should be -7. O in step 2, the x-variable should be eliminated when the equations are added together. O in step 3, both sides of the equation should be multiplied by -2 rather than divided by -2. O in step 4, substituting x=-11 into the first equation does not yield a value of 32/5 for y.
