Question

When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles she ran last week.

How many miles did Karen run last week?

Answer 1

if x i the number of miles she ran last week then
x + 40 is one side of the equation
can you work out what the other side is?

Answer 2

4x + ?

Answer 3

40?

Answer 4

no - look at the second part of the equation again

Answer 5

" question

Answer 6

14

Answer 7

no - its states that a number is add to 4x what is that number?

Answer 8

10

Answer 9

right;- so its 4x + 10
4x and 10 are not like terms so you cant simplify 4x + 10 any further.
4x + 10 is not 14. You can simplify 4 + 10 but not 4x + 10

Answer 10

so the equation is
x + 40 = 4x + 10

now you need to solve this for x

Answer 11

x=10