Answer:
x=12
Step-by-step explanation:
-5= x/2.4
multiply both sides by 2.4 to isolate x
-5*2.4= (x/2.4)*2.4
12=x
Y-4X =3 ; 2x-3y=21
Y= 3+ 4x
2x -3( 3+4x)= 21
2x- 9- 12x= 21
-10x -9= 21
-10x -9+9= 21+9
-10x = 30
X= 30/-10= -3
Y= 3+4x = 3+ 4* (-3)= 3-12= -9
Answer:
210
Step-by-step explanation:
84 / .40 = 210
(to check)
210 X .40 = 84
17 is the answer
3y-2=y+4
2y-2=4
2y=6
2y/2=6/2
y=3
1. Because
info given:
Karim's dog = 15 pounds
Frank dog = 2x more pounds than Karim's dog + 1.5 pounds
(Karim) Equation 1: 15 = Frank
(Frank) Equation 2: 2w + 1.5
joining equation 1 and 2
15 = 2w + 1.5
Solve
15 - 1.5 = 2w
13.5 = 2w ÷ 2
w = 6.75
