See below for Chris' work. Did he solve the problem correctly? Why or why not? Solve the following equation for c: 3a - 3b + 3c - 3 = 6a + 9b - 12
Step 1: -3b + 3c - 3 = 3a + 96 - 12
Step 2: 3c - 3 = 3a + 12b - 12
Step 3: 3c = 3a + 12b - 9
Step 4: c = a + 12b - 9

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

you should talk someone who owns the website about it. you did not deserve to have all that hard work and time taken away. id watch videos of little puppies to cool you down, and maybe some nacho cheese doritos.

2b2t

step-by-step explanation:

2b2t