Seudónimo Seudónimo 20-01-2021 Mathematics contestada 8. Choose the steps to take to solve this equation for x. -x + 7 = 18 a) add x to both sides, then add (-18) to both sides b) add (-7) to both sides c) add -x to both sides then add 18 to both sides d) add –x to the left, subtract 18 from the right