First you would have to isolate y.
3x - 3y = 18 -----> Subtract 3x from both sides
-3y = -3x + 18 --------> Now divide both sides by -3
y= x - 6
Now you replace the y with an f(x)
f(x) = x - 6
Answer:
38174:54*3*0.40
Step-by-step explanation:
1. calculate how much per week by
38174:54
2. than in 3 weeks
38174:54*3
3. than 40 percent of that
x*0.40
Answer:
x = -1
Step-by-step explanation:
Given: 
Solve for x, When: 
Step by step:





Answer:2
Step-by-step explanation;
<span> 4x + 4y = 20
If I'm not mistakened, this is in it's standard form.
Slope intercept form </span>→ y = mx + b
Let's transform this into that form.
4x + 4y = 20
4y = -4x = 20
y = -x + 5
The slope intercept form would be ⇒ <span>y = -1x + 5 </span>