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Which step would be MOST useful in solving the system of equations by the substitution method?

A
subtract 8x from both sides in the second equation

B
add 5y to both sides in the first equation

С
divide the second equation by 7

D
multiply the first equation by 8


Which Step Would Be MOST Useful In Solving The System Of Equations By The Substitution Method A Subtract 8x From Both Sides In The Second Equation B Add 5y To B class=

Sagot :

Answer:

B. Add 5y to both sides in the first equation.

Step-by-step explanation:

When we add 5y to both side in the first equation we will see that x = 22 + 5y

Then we can use this information in second equation like this:

-8(22+5y) + 7y = 22 which is a simpler equation and easier to solve.

So the answer to this question is B.