1 answer:
It seems like you are solving a system of equations by elimination. One way to solve eliminate a variable would be to multiply the last equation by 3:
4x - 9y = 9 --------------> 4x - 9y = 9
3(-x + 3y = 6) -----------> -3x + 9y = 18
-------------------------
x = 27
The -9y and 9y cancel out if you multiply the bottom equation by 3.
You might be interested in
Answer:
8 to 18
Step-by-step explanation:
8 to 18
Answer: f^-1(x)=-7x+3 maybe ? i think
Step-by-step explanation:
2(x+4)=18
Since it forms a "right triangle" we can apply trigonometry.
Keep adding by the same value everytime so start with 10,000 then add 20,000 etc
