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Can sombody please help me with this math problem?

The equation is y= 2/3x-3.

There are two different questions to this equation:

Question 1) Find y, if x is 9.
Question 2) Find x, if y is -11.

User Guerrilla
by
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1 Answer

7 votes

y=2/3y-3


1. y = 2/3 (9)-3 multiply 9 and 2 =18/3

y=18/3-3 divide 18 and 3 =6

y=6-3 subt. 3

y=3



2. -11=2/3x - 3

-11+3 = 2/3 x add 3 to both sides to cancel -3

-8=2/3 x

(3/2)-8 = (2/3)3/2 x multiply both sides by reciprical of 2/3

-24/2 = x divide

-12=x

User Amir Jalali
by
5.9k points