Answer:
90x
Step-by-step explanation:
If you use the same technique from the first question, you can do:
5x+2=3x+42
2x=40
x=20
For the rest of the questions, please use the same technique if they are vertical because I can't solve all of the questions for you sorry.
Answer:
The other sides equal 9cm also because a square has four equal sides.
L=9cm * W=9cm =A
A=81 cm
Answer: 36
Step-by-step explanation:
8-2+30
6+30
36
