What is the solution to the equation 2x + ( x +9 )=153?

Question

2X+(x+9)153?

Answer 1

2x + (x + 9) = 153

 

combine like terms                  3x +  9 = 153

 

subtract 9 from both sides               -9       -9

 

                                                      3x = 144

 

divide both sides by 3                    3x/3 = 144/3

 

simplify                                              x = 48

 

CHECK

 

 

2x + (x + 9) = 153

 

2(48) + (48 + 9) = 153

 

96 + 57 = 153

 

153 = 153   √

 

Answer 2

Hi Tony,

Here is a quick and simple way to solve our problem. 

Step One: 2x+1(x +9 )=153 Distribute the +1

Step Two: 2x+1x+9=153 Combine like terms

Step Three: 3x+9=153 Subtract 9 from both sides of the equation

Step Four: 3x=144 Divide both sides by 3

x=48

∴The solution to the equation is 48.

Best, 

Star