Question

check whether x=-12 is the solution of the equation x/2+x/3-x/4 = 7​

Answer 1

Answer:

12/2+12/3-12/4=7

6+4-3=7

7=7

hence X=12 is the solution of the above equation

I hope it will help you

Answer 2

Answer:

x ≠ -12

Step-by-step explanation:

x/2 + x/3 - x/4 = 7​

(-12)/2 + (-12)/3 - (-12)/4 = 7​ (substituting)

-12/2 - 12/3 + 12/4 = 7

-6 - 4 + 3 = 7 (simplify)

-10 + 3 = 7

-7 ≠ 7

Hence proved that here, x ≠ -12