<em>7)</em> they give you the variable of Y
y= -3x
plug that y into the first equation
-3x + -3x = 30
add the two terms since they're like terms
-6x = 30
to find x you need to divide 30 by -6
x = -5
<em>8) </em>it s A
$8.50 per hour is the same as 8.50x and plus the commission. I guess D can be correct but I think they want to keep it in order since they gave Greg's equation first then Kevin's
<em>9) </em>same thing the y is given to you. Plus in that to the first equation. cobine like terms and find X
B; because -5+-2=-7 and -5x-2=10
Answer:
14x - 2
Step-by-step explanation:
([7x] { -1}) ([7x] {- 1})
Add together
Answer:
x=4 and x=-3
Step-by-step explanation:
You have to set each one equal to zero and solve for x
x-4=0 x+3=0
+4 +4 -3 -3
x=4 x=-3