Answer:
451
Step-by-step explanation:
Answer:
for 6: -2x+30
I dont know for # 8
Step-by-step explanation:
to distribute, you have to multiply -3 by x and -10.
-3(x) - -3(10) + x =
-3x + 30 + x:
then you have to add common terms
-3x + x = -2x
then replace that in your equation to get:
-2x +30
Answer:
Step-by-step explanation:
I say seven...
Y=-x+2
2y=x-8
these two lines both go through the point (4,-2)
solve: substitute the y in the second equation with (-x+2):
2(-x+2)=x-8
-2x+4=x-8
add 2x on both sides:
4=3x-8
add 8 on both sides: 12=3x
divide by 3 on both sides: x=4.
find y: y=-x+2=-4+2=-2
the solution is (4,-2)
That is the answer !! hope this helped