xXrAmBoXx_21
16 Sep 2008, 6:04 PM EDT
Use deductive reasoning to solve problems and verify conjectures.
I already did the algebra part i just need to justify each step and i dont know how, i know you have to use some properties like addition and subtraction but there are more than that and idk what they are!!
1. 3x-40=2x-10
2. 6y-10+6y+10=180
3. 4z-10+z=90
4. 32+9x+4=90
5. 7x+3+65=180
6. 4y+6y=90
I already did the algebra part i just need to justify each step and i dont know how, i know you have to use some properties like addition and subtraction but there are more than that and idk what they are!!
1. 3x-40=2x-10
2. 6y-10+6y+10=180
3. 4z-10+z=90
4. 32+9x+4=90
5. 7x+3+65=180
6. 4y+6y=90