Question

evaluate the method of substitution​

Answer 1

Answer:

The method of substitution involves three steps: Solve one equation for one of the variables. Substitute (plug-in) this expression into the other equation and solve. Resubstitute the value into the original equation to find the corresponding variable

Answer 2

Answer:

To evaluate an algebraic expression, you have tosubstitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and thenevaluate the expression.