Question

Can someone answer number 10,11,12 in a picture for me and write out what you did to get your answer? Put your work & what answer you got please.

Answer 1

10. 42=-6+3x
+6 +6
48=3x
3x÷3 cancels out
48÷3=16
x=16

11. 10x+25=5
-25-25
10x=-20
10x÷10 cancels out
-20÷10=-2
x=-2

12. 30=7x-5
+5. +5
35=7x
7x÷7 cancels out
35÷7=5
x=5