Question

Tom saved $128, and his goal is to save $500. How much more must he save?

Which equation BEST represents this situation?

x + 500 = 128

x - 500 = 128

x - 128 = 500

x + 128 = 500

Answer 1

x+128 = 500

the reason is because its right

Answer 2

X - 128= 500 best represents the situation. 500 is his goal so it must equal 500 (=500) we have to figure out how much he has left to save and he already has $128 so you would subtract 500-128= x but another way to write that equation would be x -128= 500