Question

Jordan solved the equation −7x + 25 = 48; his work is shown below. Identify the error and where it was made.

            −7x + 25 = 48
Step 1: −7x + 25 − 25 = 48 − 25
Step 2: −7x = 23
Step 3: =
Step 4: x =
Step 1: He should have added 25 to each side.
Step 1: He should have divided both sides by −7.
Step 3: He should have divided both sides by −7.
Step 3: He should have multiplied both sides by −7.