I am not so sure what you are asking
3x + 7 = x - 15
First, make sure to subtract

from both sides.
Second, simplify 3x - x to get 2x, and then keep the 7.
Third, subtract

from both sides.
Fourth, simplify -15 - 7 to get -22.
Fifth, take the 2 and divide both sides by it, keeping the

by itself.
Sixth, since 11 goes into 2 to get 22, simplify the fraction to 11.

Answer:
x = -11
Answer:
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Explanation:
a) Ronaldo is <u>a</u><u> </u> famous footballer.
b) That was <u>an</u><u> </u> important day in history.
c) He can play <u>the</u><u> </u> guitar well.
I hope it's help you...
Thanks♥♥
16. means impossible to overcome so need to do opposite of that,i will look in my work book, i have three of them.