First, we have to make one of the x's have the same coefficient so they can cancel each other out (or eliminate)
3(x+y) = 3(2)
you're going to have to do it to both sides to keep it balanced
3x+3y=6
now line them up and add them
3x+3y= 6
+ (-3x+4y=15)
since the 3x and -3x add up to 0x and cancels each other, you're left with
7y = 21
divide both sides by 7
y=3
plug in the y into one of the original equations
x+y=2
x + 3 = 2
subtract 3 from both sides
x = -1
x = -1 , y = 3
Answer:
DO U KNOW HOW TO GET MORE POINTS?
Step-by-step explanation:
If you need more clarification comment back to me and I can try. Hope this helps!
Answer:
0.66 and 33/50
62.5% and 5/8
0.75 and 3/4
120% and 1 1/5
0.005 and 1/200
3.75 and 375%
I hope that is correct and helps you! :)
Step-by-step explanation:
To find how many hours he worked in total, simply add how many he worked on Monday to how many he worked on Tuesday.
43 + 35 = 78
John worked 78 hours in these two days.
Unless this is a trick question since there's only 24 hours in a day, not 35 or 43, then 78 hours is the correct answer.