Solve the equation 7x=15+6 using substitution.(1 point)

Answer 1

In order to solve the equation using substitution, we need to isolate one variable and substitute it into the other equation.

Given: 7x = 15 + 6

Let's isolate x in the equation 7x = 15 + 6:

7x = 21

Now, divide both sides by 7 to solve for x:

x = 21/7

Simplifying the right side:

x = 3

Therefore, the solution to the equation 7x = 15 + 6 is x = 3.