15x - y = -6.5
y = 15x + 6.5
the new equation is
5x - 3(15x + 6.5) = -13
5x - 45x - 19.5 = -13
-40x = 6.5
Answer:
The unknown number is
Step-by-step explanation:
Let's make the unknown number x.
The sum of 5 TIMES a number (x) & 8 is 9.
Let's write it mathematically.
5x + 8 =9
We are trying to find the unknown number, so let's remove all the numbers from the left side to find x. Minus 8.
5x=1
5x is basically 5 times x, so to find x, we need to divide and from there we can remove 5.
x=
Answer:
2.5 + 3<em>h</em> = 13
Step-by-step explanation:
2.5 for the hotdog.
3 for each hamburger
3.5$ for each hamburger as h
Hope this Helps!
Answer:
1.91666666667
Step-by-step explanation:
Answer:
.25
Step-by-step explanation: