Hello there!
79 − 42 = ? − 50
Step 1: Simplify both sides of the equation.
79 − 42 = ? − 50
79 +− 42= ? +− 50
(79 +−42) =? − 50 (Combine Like Terms)
37= ? − 50
Step 2: Flip the equation.
? − 50 = 37
Step 3: Add 50 to both sides.
? −50 + 50 = 37 + 50
?=87
I hope I helped!
Let me know if you need anything else!
~Zoe