Answer:
(3,7) is not a solution
Step-by-step explanation:
You fill in the values x=3 and y=7 in both equations and see if you end up with something that is true.
-5·3 - 2·7 = 23 is not true, because it simplifies to -29 = 23
no need to look further, but if you would, the second equation is also false:
3 + 4·7 = -19 is also not true.
The real solution by the way is (-3, -4).
Six times four is equal to 24, so now you know you'll be using six. 6 x 12 = 72
To solve for x:
<span>C=85x+60 subtract 60 from both sides
</span>
<span>C - 60=85x+60 - 60
C - 60 = 85x now divide by 85 both sides
(C - 60)/85 = x
So we can write:

</span>
I hope that
helps!
Answer:
X = 3 x − 14
y = − x + 5
Step-by-step explanation:
Solve for the first variable, then substitute the result into the other equation.
Answer:i will help! what do you ned help with?
Step-by-step explanation: