1) 30(x6) = 189180x = 189x = 189 / 180x = 1.05
2) 7203 438 + x / 6 = 100047203 438 + x = 60 024x = 60 024 - 7203 438x = 52 781
3) (800 - 180) / x = 20620 / x = 20x = 620 / 20x = 31
1) 30(x6) = 189
180x = 189
x = 189 / 180
x = 1.05
2) 7203 438 + x / 6 = 10004
7203 438 + x = 60 024
x = 60 024 - 7203 438
x = 52 781
3) (800 - 180) / x = 20
620 / x = 20
x = 620 / 20
x = 31