Answer:
x= -7/5 y=8/5
Step-by-step explanation:
1. choose a variable to eliminate (i chose 6)
2. multiply the first equation by 2 and the second equation by 3
3. now you have
-6x+6y=18
6x-21y=-42
and the x's can now cancel out when you add the equations together
4. after adding the equations, you get
-15y=-24
5. solve for y (y= 8/5)
6. now plug in 8/5 for the y in one of the original equations to solve for x. (i chose the first one)
7. -3x+3(8/5)=9
-3x+24/5=9
-3x=21/5
x= -7/5
Answer:
The Answer is: (-6, 11); (3, 5); (15, -3); (-12, 15)
Step-by-step explanation:
f(-6) = -2/3(-6) + 7 = 12/3 + 7 = 4 + 7 = 11
f(3) = -6/3 + 7 = -2 + 7 = 5
f(15) = -30/3 + 7 = -10 + 7 = -3
f(-12) = -2/3(-12) + 7 = 24/3 + 7 = 8 + 7 = 15
To find the -12, you have to solve for x:
-2/3x + 7 = 15
-2/3x = 15 - 7
-2/3x = 8
x = -3/2 * 8 = -24/2 = -12
Then to prove the number, find f(-12) = 15
6x + 8y..........................................................................................
Answer: its 14...
Step-by-step explanation:
19-5=14
5+14=19