How do you solve this using substitution
Y=18x-40
Y=10x-16

point form: (3, 14) equation form: x=3, y=14

Step-by-step explanation:

if the equations are y=18x-40 and y=10x-16 solve y for 18x-40 by substituting 18x-40 for the y in y=10x-16.

18x-40=10x-16

18x-40+-10x=10x-16+-10x

8x-40=-16

8x-40+40=-16+40

8x=24

8x/8=24/8

x=3

then substitute 3 for the x in y=18x-40

y=18(3)-40

y=14

the answer to this question is 3/19

step-by-step explanation:

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step-by-step explanation: