Question 37702
IF Y=4X+1 THE SUBSTITUTING (4X+1) FOR Y IN EQUATION 1 WE GET

2X+(4X+1)=4 OR 2X+4X+1=4 OR 6X=3 OR X=3/6 OR X=1/2  THEN Y=4*1/2+1 OR 

Y=2+1 OR Y=3 

PROOF 3=4*1/2+1 OR 3=2+1 OR 3-3 & 2*1/2+3=4 OR 1+3=4 OR 4=4