B)12
Step-by-step explanation:
60=5x-10
+10 +10
70=5x
÷5 ÷5
x=12
Answer:
Work it out by grouping them
Answer:
When you subtract, the numbers decrease however when you add the numbers increase.
Step-by-step explanation: Theres the answer but is it multiple choice? if so than you can give me the choices and ill tell you the answer. But i hope this helped and if u need anything u can ask!