Respuesta :
2x + 12 - 7x = -2
1. you can either minus or add 7x to 2x
2. which gives 9x + 12 = -2
3. minus 12 on both sides
4. gives you 9x +-14
5. divided -14 by 9
Answer is -1.55 repeatting
1. you can either minus or add 7x to 2x
2. which gives 9x + 12 = -2
3. minus 12 on both sides
4. gives you 9x +-14
5. divided -14 by 9
Answer is -1.55 repeatting