book Maths Puzzle Numerical Ability

please teach me step by step of this equation: 2(3y+4)=32

Read Solution (Total 1)

book Other Question

write the equation of the line from the given slope and Y-intercept:
M=9,Y-intercept=(0,-1) (I got y=9(x)+(-1) )
M=-3,Y-intercept=(0,-8) (I got y=-3(x)+(-8) )

Am I correct? thanks.
Graph the compound inequality

2x+y_<4 and x-1>0