By adding the 1st and third equation together, you get rid of z and end with 7x+8y=13. The second equation will be the second equation and 2 times the first equation, so the will yield 3x+8y=1. Now, you solve this system of equations and get x3, y=-1, and z=-4
Multiply the sqaure route of 2 and the route of 4 to get the square route of 8
Hope this helps!
Answer: The first choice
Step-by-step explanation: You alsways distribute inside the paranethesis, so 2(x+3)+5 > 2x+ (2*3)+5
Answer:
I think u=11
Step-by-step explanation:
A=6a^2
726 divided by 6= 121
square root of 121=11
answer=11