<h2>
Answer:</h2>
By Substitution Method
<h2>
Step-by-step explanation:</h2>
Solve by Substitution :
We have two equations
y = 5x ---------------> Equation 1
y = 2x - 15 ------------> Equation 2
y= 2x - 15 and y= 5x
So Put the value of y in Equ 2
(5x) - 2x = -15
3x = -15
Solve equation [1] for the variable x
3x = - 15
x = - 5
Now
y = 5x
x = -5
Use the x value to solve for y
y = 5(-5) = -25
Solution :
{y,x} = {-25,-5}
So y= -25 and x= -5
I'm not 100% positive, but from my calculatons, the answer is C.
Answer:
9
Step-by-step explanation:
You do 90 divided by ten.
<u><em>Answer:</em></u>
<u><em>Your correct answer is x = 42
.</em></u>
<u><em>My Step-by-step explanation:</em></u>
<u><em>Just turn the problem around by changing the subtraction to addition: 100 – x = 58 means the same thing as 100 – 58 = x, so x = 42.</em></u>