Answer:
(12,-2)
Step-by-step explanation:
look on a number line
count 7 from 5 to the right and left
and put both number into a (x,y) format
Multiple 6 with numbers inside paranthesis:
12x - 66 + 15 = 21
add 66 fhen substrack 15 from both sides :
12x = 72 divide both sides with 12:
x = 6
The answer is 2, you subtract 4 from 2 and get 2 and then multiply by 1
Through combining like terms we get 4 - 3x.