For the equation, x-7=24, can a value be substituted for x to make that a true number sentence? How many values could be substituted for x and have a true number sentence?
we add 7 to both sides, making x=31. we can substitute 31 and make the true number sentence. only 31 can be substituted, as it is only one x value, holding only one true value, which we found out is 31. hope this helped!! xx
