Question

I need help ! On these two last questions does anyone know it

Answer 1

2. 1) 2x-6-x+7
2)x+1
3)x=-1

4. 1)-5x+3+7x+1
2)2x+4
3)2x=-4
4)x=-2

Answer 2

2x-6-x+7=x+1

-5x+3+7x+1=2x+4

When you eliminate negative parenthesis in -(), all the terms inside the parenthesis need to change symbol, positive becomes a negative, negative becomes a positive.