Answer:
Below!
Step-by-step explanation:
111.5
Well just substitute y (the first equation) into the second equation.
So
5x-4(5-3x)=-3
Then just solve the equation from there.
5x-20+12x=-3
17x=17
x=1
and if you need y, y=2
Answer:
£2.80
Step-by-step explanation:
7%= 7/100
(7/100)*40=2.8
Answer:
-2
Step-by-step explanation:
5+(-7) is the same as saying 5-7, so lets looks at this
Answer:
one num = 6
another = 24
Step-by-step explanation:
One number = x
Another = 4x
Difference = 18
4x - x = 18
3x = 18 ; x = 18/3 = 6