1) 4(0.6x - 0.3) - 3(0.7x - 0.1) = 02.4x - 1.2 - 2.1x + 0.3 = 00.3x - 0.9 = 00.3x = 0.9x = 3
2) 5(0.14 - 0.25x) + 3(0.3x + 0.1) = 00.7 - 1.25x + 0.9x + 0.3 = 0-0.35x + 1 = 0-0.35x = -1x = 2.8571 (rounded to 4 decimal places)
3) (1/3 - 2/3) ÷ 1/3-1/3 ÷ 1/3-1
4) (17 + 31) 548 5240
5) (41 - 25) (-13)16 -13-208
1) 4(0.6x - 0.3) - 3(0.7x - 0.1) = 0
2.4x - 1.2 - 2.1x + 0.3 = 0
0.3x - 0.9 = 0
0.3x = 0.9
x = 3
2) 5(0.14 - 0.25x) + 3(0.3x + 0.1) = 0
0.7 - 1.25x + 0.9x + 0.3 = 0
-0.35x + 1 = 0
-0.35x = -1
x = 2.8571 (rounded to 4 decimal places)
3) (1/3 - 2/3) ÷ 1/3
-1/3 ÷ 1/3
-1
4) (17 + 31) 5
48 5
240
5) (41 - 25) (-13)
16 -13
-208