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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=

Respuesta :

KurdishPotato

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.

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