shalotta1 shalotta1

28-05-2016
Mathematics

Answered

the work of a student to solve a set of equations is: Equation A: y=15-2z and Equation B: 3y=3-4z so what would steps be?

Verified Answer :

alex3245 alex3245

28-05-2016

You have to use substitution:

You already know what y is in terms of z so put it into the other equation

3(15-2z)=3 -4z
45-6z=3-4z
42=2z
21=z

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