. Check your solutions.

b.
7+2x = 4x-3

es correcto porque 7+2 x 2= 18 , y 4x3 es 18

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.