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Answer:
(x,y)=(5,-1)
Step-by-step explanation:
1. 2x+y=9 ---> y=9-2x
2. Substitute y=9-2x into 3x-2y=17 ---> 3x-2(9-2x)=17 ---> 3x-18+4x=17 --> 7x=35 ---> x=5.
3. Substitute x=5 into 2x+y=9 ---> 2*5+y=9 ---> y=9-10 ---> y= -1
Has form - last two
can be put in form - none
other - first four
Step-by-step explanation:
the answer is C -1 -5 this will help
Answer:
x is 4
Step-by-step explanation:
21x+6 = 90
21x=84
x=4
