3x + 4y = 16 Write original equation
3x + 4y - 4y = -4y + 16 Subtract 4y from each side
3x = -4y +16 Simplify
3x/3 = -4y/3 + 16/3 Divide each side by three
x = -4y/3 +16/3 Simplify
I hope this helps!
He earned $16 in a hour cuz he worked for 10 hours and 10x16=160
Well you could do 5(60x+20y), 100(3x+y), and 2(150x+50y)