Help plesss i will BRAINLIST:);*

Yes

3x+24=42

3x=42-24

3x=18

x=18/3

.°. x=6

no...

3(x+8)=126

x+8=126/8...

3x+8=42

3x=42-8

3x=34

x=34/3

4 number yes

3x+24=42

3x=42-24

3x=18

x=18/3

.°. x=6

second last yes and last not enough information...

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18