3y-1=13-4y what is y?

3y-1=13-4y

3y + 4y = 13 + 1
7y = 14
y = ?

WITH A(0,2),B(6,2)AND C(4,4) APPLY THE RULE (1.5X,1.5Y) TO THE VERTICLES OF TRIANGLE ABC TO GET TRIANGLE PQR. COMPARE THE CORRESPONDING MEASUREMENTS(SIDE LENGHTS,PERIMETER,AREA, AND ANGLE MEASURES) OF THE TWO TRIANGLES? THIS IS THE 1ST QUESTION OF 5 I HAVE TO DO, AND I DON'T UNDERSTAND, PLEASE HELP!P.S THIS IS A GRAPHING QUESTION