5x + 2y = 20, when x = 0.3
y = 9.25 just multiply 5 by .3 and add the 2 and subract that to find y
5 times 0.3 is 1.5.20 minus 1.5 is 18.5.18.5 divided by 2 is 9.25.5(0.3) + 2(9.25) = 20Y = 9.25