Hi there!
To solve this problem using substitution, we need to set x equal to a value and substitute it into the other equation.
Since
x - 4y = 5,
x = 5 + 4y
3x - 7y = 10
3(5 + 4y) - 7y = 10
15 + 12y - 7y = 10
15 + 5y = 10
5y = -5
y = -1
Now that we know y is -1, we can substitute it back into the equation to find x:
y = -1
x - 4y = 5
x - 4(-1) = 5
x - (-4) = 5
x + 4 = 5
x = 1
So, your answers are x = 1 and y = -1.
Hope this helps!
Answer: $-84
Step-by-step explanation:
Hello,
I still say it is not my cup of tea.(I hate tea)
3*4*1/5+2*1/2*1=17/5=3.4
Answer D
She had 8 but he ate 5 so: 8 minus 5: 8-5.
Subtract: 8-5=3
She has 3 cookies left ((and zero friends XD )) :)
Answer: Substraction property
Step-by-step explanation:
-94=12n+2
12n+2=-94
12n+2-2=-94-2
12n=-96
![\frac{12n}{12}=\frac{-96}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B12n%7D%7B12%7D%3D%5Cfrac%7B-96%7D%7B12%7D)
n=-8