Question

One times a number x, plus 2 times a number y, equals 9. Negative one times x minus 3 times y equals -14. What are the numbers?

Answer 1

A. x=7, y=12
B. x=-1, y=5
C. X=5, y=1
D. x=-11, y=24

Answer 2

Help me @mathmale

Answer 3

I'll give medal

Answer 4

@pooja195

Answer 5

@texaschic101

Answer 6

Lets start by setting this up =)
first sentence:
\[(1*x)-(2*y)=9\rightarrow x+2y=9\]
\[(-1*x-(3*y)=-14\rightarrow -x-3y=-14\]

Answer 7

now lets solve for y
the first is \[x+2y=9\rightarrow 2y=9-x\rightarrow y=\frac{9-x}{2}\]
the second is \[-x-3y=-14\rightarrow -3y=-14+x\rightarrow 3y=14-x\rightarrow y=\frac{14-x}{3}\]

Answer 8

\[\frac{14-x}{3}=\frac{9-x}{2}\rightarrow 2(14-x)=3(9-x)\rightarrow\] \[28-2x=27-3x\rightarrow 28-27=-3x+2x\rightarrow 1=-x\rightarrow x=-1\]

Answer 9

Two times a number, x, plus 3 times a number, y, equals 50. Four times x minus 2 times y equals 4. What are the numbers?

x = 7, y = 12

x = 19, y = 4

x = 10, y = 18

x = -11, y = 24

Answer 10

\[y=\frac{9-(-1)}{2}\rightarrow \frac{10}{2}\rightarrow y=5\]
\[y=\{14-(-1)}{3}\rightarrow \frac{15}{3}\rightarrow y=5\]

Answer 11

Thank you sorry could you help me on this last one to its my last one out of 80 questions

Answer 12

It's 2:00 a.m 😞

Answer 13

quick answer or you want a walk through?

Answer 14

Quick answer

Answer 15

x=11/2 and y=9

Answer 16

I didnt look at you answers so don't know if I'm remotely correct I'm tired.

Answer 17

Ok thank you anyway for Your time so helpful

Answer 18

i try