# MAth

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jerry is 6 more than 3 times as old as his son.together they are 46 yrs old. how old is jerry. ans -36
I set up problem 6+3x=46 to start?

• MAth -

It is always a good practice to define the variables, in this case:
son's age = x
Jerry's age = 6+3x
Together
x + (6+3x) = 46
...

• MAth -

so x + 6+3x =46
4x + 6-6 = 46 - 6
4x/4 = 40/4
x = 10 ???? it should be 36 what am I missing?

• MAth -

son's age = x
Jerry's age = 6+3x

"...how old is jerry. "

• MAth -

4x divided by 4 = x
40 divided by 4 =10

• MAth -

if x = 10
then
6+3x = 6+30

• MAth -

got it, thanks

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