X+y=27
x=2y
2y+y=27
y=9
x=27-y
x=27-9=18
Answer:
infinite solution
Step-by-step explanation:
because it is a linear equation.
Did you mean 9 - 20 will if u did it equals up to -11
Answer: the first one
Step-by-step explanation:
It is the only one that is right
5(2x - 8) + 15 = -15
-15 -15 subtract 15 from each side
5(2x - 8) = -30
÷5 ÷5 divide both sides by 5
2x - 8 = -6
+8 +8 add 8 to each side
2x=2
÷2 ÷2 divide both sides by 3
x = 1
Checking:
5(2(1)-8) + 15 = -15
5(-6) + 15 = -15
-30 + 15 = -15
-15 = -15 Correct! x=1
