1) Solve for x:
7 - 0.01x - 0.02y = 0
The goal is to isolate x on one of the sides.
Traspose - 0.01x => 7 - 0.02y = 0.01x
Divide both members by 0.01 => 7/0.01 - 0.02y / 0.01 = 0.01x / 0.01
=> x = 700 - 2y
Answer: x = 700 - 2y
2) Solve for y.
The goal is to isolate y
Transpose - 0.02y => 7 - 0.01x = 0.02y
Divide by 0.02 => 7/0.02 - 0.01x / 0.02 = 0.02y / 0.02
=> y = 350 - 0.5x
Answer: y = 350 - 0.5x
