Respuesta :

let 
x------> the unknown number

we have 
6.93*4.21 + 3.56*x + 4.21=6.93

Group terms that contain the variable x, and move the constants to the opposite side of the equation

3.56*x=6.93-6.93*4.21-4.21

3.56*x=6.93-29.1753-4.21

3.56*x=-26.4553

divide by 3.56

x=-26.4553/3.56

x=-7.43

the answer is

-7.43

Answer:

The answer is 3.56............

Step-by-step explanation:

ACCESS MORE