5x−4y=34
−x+8y=22
elimination

The solution to the system of equations is:

Step-by-step explanation:

Given the system of equations

Multiply -x+8y=22 by 5:  -5x+40y=110

so adding the equations

solve 36y = 144 for y:

divide both sides by 36

Simplify

For 5x-4y=34 plug in y=4

Add 16 to both sides

Simplify

Divide both sides by 5

Simplify

Therefore, the solution to the system of equations is:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.