Solve the system by substitution.
y = 8x
y=10x – 4
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How

(2,16)

Step-by-step explanation:

y=8x(i)

y= 10x-4(ii)

Substituting the value of y=8x in equation (ii)

8x=10x-4

8x-10x=-4

-2x= -4

x=2

Now, substituting the value of x= 2 in equation (i)

y=8x=8(2)=16

Solution of the system is (2,16)

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get