| 3x − 12 | ||
a) 2x + 5 − | ||
| 3 |
| 12x + 16 | 10x + 15 | |||
b) | − | |||
| 4 | 5 |
| 9 − 6x | 21 − 14x | |||
c) | − | |||
| 3 | 7 |
| 4(x − 1) | 10x − 50 | |||
d) | − 3 * | |||
| 2 | 5 |
| 4(x−1) | 3(10x−50) | ||
− | = | ||
| 2 | 5 |
| 5*4(x−1)−2*3(10x−50) | |
= | |
| 10 |
| 20x−20−60x+300 | |
= | |
| 10 |
| −40x+280 | 10(−4x+28) | ||
= | = −4x+28 = 28−4x = 4(7−x) | ||
| 10 | 10 |
| 3x − 12 | ||
2x+5 − | = 3(2X − 5) − 3x −12 = 6x − 15 −3x −12 = 3x − 27
| |
| 3 |