Answer:
Step-by-step explanation:
she made an error in step 4.
it should be add 13 to both sides.
or +13 +13
on both sides.
Answer:
60;100
Step-by-step explanation:
Multiply 10 each side
If your trying to find x, distribute 2(x+6), which is by multiplying 2 times x, which is 2x and 2 times 6, which is 12. So your left off with 4x+2=2x+12. In order to find x, we have to move the 2 to the right, which will give us 2x+10 and then move 2x to the left to give us 2x=10. Divide both sides by 2, and x= 5.
Answer:
89
Step-by-step explanation:
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