14. (y+x=-2)3
2x-3y=31
3y+3x=-6
2x-3y=31
the y variables cancel out
5x=25
5x÷5=25÷5
x=5
y+5=-2
-5. -5
y=-7
Ok.You have 24$. You used 20$. And you have $4 left. You bought 5 pens. So $20.00/ 5=$4.00. Each pen is four dollars.
Answer:
Range is [0 , 7] for g(x)
Step-by-step explanation:
The range of f(x) is [0 , 1.75]
The range of g(x) is 4 times
4*0 = 0
4* 1.75 =7
Range is [0 , 7] for g(x)
{ y=2x+2
{ y=4x-2
2x+2=4x-2
x=2
y=2 ⋅ 2+2
y=6
(x,y)=(2,6)
——
Check solution:
{ 6=2 ⋅ 2+2
{ 6=4 ⋅ 2-2
{6=6
{6=6
