Adding the opposite to both sides of an equation is a process better known as?

Match each equation with the operation you can use to solve for the variable. 1 subtract 10 2 divide by 10 3add 18 4add 10 5 subtact 18 6multiply by 5. 7multiply by 10. a 5 = 10p b p + 10 = 18 c p + 18 = 5 d 5p = 10

Give me the equations of two lines that have the same slope but are not parallel.

Which letters from the table represent like terms? a and b b and c a and d b and d