Answer:
-12
Step-by-step explanation:
Y=1-2x
-4x+3y=-17
Plug in y into -4x+3y=-17
-4x+3 (1-2x)=-17
-4x+3-6x=-17
-10x+3=-17
-3 both sides
-10x=-20
÷-10 both sides
x=2
plug in x to find y
y=1-2 (2)
y=1-4
y=-3
x+3y=9
2x+3y=15
make first equation into x= form
-3y both sides
x=-3y+9
2x+3y=15
plug in x into 2x+3y=15
2 (-3y+9)+3y=15
-6y+18+3y=15
-3y+18=15
-18 both sides
-3y=-3
÷-3 both sides
y=1
plug in y
x+3 (1)=9
x+3=9
-3 both sides
x=6
Answer: 6 and 2
Step-by-step explanation:
Answer:
d. 18 ÷ 3
Step-by-step explanation:
<em>you would want to split the payment evenly.</em>
- <em>18 ÷ 3 friends</em>
- <em>think, how many times does 3 go into the number 18...</em>
- <em>6 times </em><em> ⇒ 3 x 6 = 18</em>
- <em>now you can split the cost evenly</em>
<em>so your answer would be </em><em>d. 18 ÷ 3 </em>
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