Answer:
(using substitution to solve the problem)
x=y-3
2x+y=12
2(y-3)+y=12
2y-6+y=12
3y=18
y=6
y=6
x=6-3
= (3, 6)
Step-by-step explanation:
using substitution, substitute the x in the second equation to y-3, to find the value of y. after that distribute the 2 into the parenthesis and collect like terms. once you simplify, you have the value of y, so substitute the value of y into the first equation to find x. once you have both values put them in the ordered pair form and you're done.
i hope this helps :)
Y= -7x +9 to graph plot point (0,9) and then go down 7 and to the right 1 (plot another point and connect line)
when u have a bunch of numbers together
Answer:
24
Step-by-step explanation:

Square both sides:

Subtract 1 from both sides:

Hope this helps!
I can’t explain it perfectly because I don’t know
But x = 20