The first option is correct
Answer:5m
Step-by-step explanation:
3m +m+m=5m not 3m +2
<span>x=3y-8
3x-4y=-9
We are told that:
</span>x=3y-8
So replace x in 3x-4y=-9 with x=3y-8 like so:
3(3y-8)-4y=-9
Start by distributing the 3:

Now you have:

Combine like terms, now you have:

add 24 to both sides

Now you have:

Divide both sides by 5 to get:
y=3
Now that you know y=3 plug it into:
x=3y-8
x=3(3)-8
x=1
Final answer: (1,3)
Answer:
should be 140 I guess
Step-by-step explanation:
Answer:
1. 4x + 8
2. 14x
3. 8x + 12
4. 6x + 6y + 6z
Step-by-step explanation:
you pretty much take the number on the outside and multiply on by one with numbers on the inside.