Word problem 7 th grade pre algebra

Question

Andre hit four more home runs than twice the number of home runs Larry hit. Together they hit 10 home runs. How many home runs did Andre hit

Answer 1

Jason, Let x=Larry's home runs and let 2x+4=Andre's home runs.  Together they hit 10 home runs.  Set the equation:  x+2x+4=10;  Now combine like terms:  3x+4=10;  Subtract 4 from both sides of equation;  3x=6;  Divide both sides of the equation by 3;  so,  x=2 which are Larry's home runs:  2(2)+4=8; these are Andre's home runs.  Check:  2+2(2)+4=10.  10=10.

Answer 2

Larry hit "y" homeruns

Andre hit 2Y + 4

 

Y + 2Y +4 = 10

3Y + 4 =10

3Y = 6

y = 2

 

Larry hit 2 homeruns

Andre hit 8

 

To answer the question Andre hit 6 more homeruns than Larry.

Answer 3

Jason,

A commonly-overlooked route to solving word problems is simply to very clearly express your variables.

Let x = the number of home runs hit by Andre

Let y = the number of home runs hit by Larry

 

Just by defining the variables, try to develop the mathematical expressions required.