Answer:
ohhh
Step-by-step explanation:
3 number 3 I know that is the answer
Answer:
I think if it takes me 8 hours then it will surely take him 8 hours
Answer:
Step-by-step explanation:
(1) 2x - 6y = -12
(2) x + 2y = 14
There is a -6y and a +2y. Since they have opposite signs, I'll try to eliminate the y terms. (That's my choice. There is more than one way to solve these.)
Multiply eq. (2) by 3:
3x + 6y = 42
Then add the result to eq. (1) to eliminate the y terms:
2x - 6y = -12
3x + 6y = 42
------------------
5x = 30, so x = 6
Now plug the value of x into eq. (2) and solve for y:
6 + 2y = 14
2y = 8
y = 4
Why did I use eq. (2) to solve for y? Because it's less work. I could have used eq. (1) instead:
2(6) - 6y = -12
12 - 6y = -12
-6y = -24
y = 4
More than one way to solve.
-5x+2y=6
2y=6+5x
y=5/2x + 6
x+3y=3
3y=3-x
y=-x/3+1
-2x+y=4
y=2x+4
4x+9y=-9
9y=-4x-9
y=-4/9x+1
Hope this helps.
