Wade needs to solve the problem 1 5/8 x - 2 1/2 = -11 4/5 He is not sure what to do first, so he rounds the numbers to take a look at a simpler problem. The equation he writes is 2x - 3 = -12. From this, he can see that he should start solving the original equation by _____.

a adding 11 4/5 to both sides of the equation

b subtracting 2 1/2 from both sides of the equation

c adding 2 1/2 to both sides of the equation

d dividing both sides of the equation by 1 5/8