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
Pretty sure th answr is specific purpose (: hope this helps
No you do not need a comma on this sentence here.
Answer:
2 syllables - airplane, thermal, aircraft, grammar, chronic, program
3 syllables - diagram, microscope, autograph, microwave, microphone, paragraph, catalog
4 syllables - biology, biography
Explanation:
i sorted the words in groups according to their number of syllables
a syllable is a unit of pronunciation
i hope this helped ya