7x+5+8x
combine 7x and 8x to get 15x+5
m = 7.5x+2.5 would be the exact middle, but without knowing x I can't help much more. My school's work usually tells me x.
Answer:
1 chocolate will cost about $0.73
Explanation:
You'd have to fine the unit rate. To do so you divide the cost,$11, by the number of chocolates,15 .
I'll take this challenge since I'm not feeling lazy for once.... x would represent Gavin and y would represent Seiji.
a.
b. I will solve your system using substitution.
<span>Step 1: Solve </span>

for x

(add -y for both sides)

<span>Step 2: substitute </span>

for x in


<span>
</span>


(simplify both sides of the equation)

(add -425 to both sides)<span>
</span>


y=200
step 3: substitute 200 for y in





c. Already answered with the picture that is attached.
d. Gavin earned 225 dollars while Seiji earned 200 dollars.
Answer:
-17
Step-by-step explanation:
-(-x)
This simplifies to positive x
x
Let x = -17
-17
Answer:
here,
3( x + 5 ) = 3• x+ 3 • 5 uses the distributive property correctly.