1) 4.8x - 2.5x = 4.372.3x = 4.37x = 4.37 / 2.3x = 1.9
2) (x + 2.1) * 4 = 15.24x + 8.4 = 15.24x = 15.2 - 8.44x = 6.8x = 6.8 / 4x = 1.7
3) 9.88 / (6.7 - x) = 2.66.7 - x = 9.88 / 2.66.7 - x = 3.8-x = 3.8 - 6.7-x = -2.9x = 2.9
1) 4.8x - 2.5x = 4.37
2.3x = 4.37
x = 4.37 / 2.3
x = 1.9
2) (x + 2.1) * 4 = 15.2
4x + 8.4 = 15.2
4x = 15.2 - 8.4
4x = 6.8
x = 6.8 / 4
x = 1.7
3) 9.88 / (6.7 - x) = 2.6
6.7 - x = 9.88 / 2.6
6.7 - x = 3.8
-x = 3.8 - 6.7
-x = -2.9
x = 2.9