How do you solve this using substitution
Y=18x-40
Y=10x-16

point form: (3, 14) equation form: x=3, y=14

Step-by-step explanation:

if the equations are y=18x-40 and y=10x-16 solve y for 18x-40 by substituting 18x-40 for the y in y=10x-16.

18x-40=10x-16

18x-40+-10x=10x-16+-10x

8x-40=-16

8x-40+40=-16+40

8x=24

8x/8=24/8

x=3

then substitute 3 for the x in y=18x-40

y=18(3)-40

y=14

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.