1. Substitute y=-x+2 into x-3y=-18:
x-3(-x+2)=-18,
x+3x-6=-18,
x+3x=-18+6,
4x=-12,
x=-3.
Then y=-(-3)+2=3+2=5.
2. The graphs of two equations you can see in attached diagram. Common point (the point of intersection) represents the solution of the system of two equations.
Answer: (-3,5) or x=-3, y=5.
Answer:
Step-by-step explanation:
g(x) = 3(x + 8).....find g(12).....what ur basically doing is subbing in 12 for x
g(12) = 3(12 + 8)
g(12) = 3(20)
g(12) = 60 <===
You know that if you are multiplying a number by 5, and multiplying the same number by 6, 6 is going to be bigger
16m^4 - n^4
= (4m^2 + n^2)(4m^2 - n^2)
= (4m^2 + n^2) (2m + n)(2m - n)