Question

how many solutions does 3x-7=2x-1+x+7 have?

Answer 1

3x-7=2x-1+x+7
3x - 2x - x = -1 + 7 + 7
0 = - 1 + 7 + 7

because of 3x - 2x - x = 0, then
3x - 2x - x = 0
(3-2-1)x = 0

x = 1 , or x = 0

Answer 2

so i think will be 3x-7=2x-1+x+7 what will be
3x-2x-x = 7-1+7
0 = 13

so do you know what mean this when will be eliminated the unknowed term x for what you need to solve this equation ?

so this mean that this equation have not solution(s) because indifferent what value(s) you will add to x never not will get the laft side equal right side

hope this is understandably sure right easy

good luck

bye