Answer:
1-7yz
Step-by-step explanation:
1-yz+2yz-2y2z2
First Calculate the product (-2y2z2)
1-yz+2yz-8yz
Then calculate the value of the expression
1-7yz :)
Answer:
there is a problem in question is hafe only
I believe the anwser is 2
Answer:
13/14
Step-by-step explanation:
3/7 x 2/2 = 6/14
1/2 x 7/7 = 7/14
6/14 + 7/14 = 13/14
4x + 3y = 19 multiply this by 4
5x - 4y = 47 multiply this by 3:-
16x + 12y = 76..............(1)
15x - 12y = 141............(2)
Add (1) + (2);-
31x = 217
x = 7
Now plug = 7 into the first equation:-
4(7) + 3y = 19
3y = 19 - 28 = -9
t = -3
Solution is x = 7, y = -3.