I hope this helps you
4,8 (x+4)=2,16
48 (x+4)=21,6
x+4=21,6/48
x+4= 0,45
x=0,45-4
x= -3,55
Ok so first equate all the three equations whether by substituting or by eliminating then choose the one das not the answer
X is greater than or equal to 67
1000/15 =66.6 =67
is the difference between 
Step-by-step explanation:
Given equations,

Difference of the polynomial is written as

Open the brackets and multiply with -1 the whole expression
becomes


This is the difference of given two polynomials is
.