The answer of -30+10 is -20
-30+10=-20
Step-by-step explanation:
3x-4y=13
y=-3x-7
3x-4(-3x-7)=13
3x+12x+28=13
15x=-15
x= -1
y= -3x-7 = 3-7= -4
( -1, -4)
20; make both equations equal so whatever you plug in for x will be the same
2(4x+10)=8x+k
8x+20=8x+k
k=20
Answer:
i put 30% but on the act workstudy that was not the correct answer.
Step-by-step explanation:
The answer is C. ............