Question

scrieti doar solutiea va rog frumosssssssssss!!!!!
1) 5(x+2)=5x+10
2) -7(x+3)=-7-21
3) 8x+4x+3=-8x+4x+5
4) 11x-3x+2=5x+3x+2
5) 12x-5x=2(x-15)
6) -9(x+5)=-4x-3x-49

Answer 1

[tex]1) 5(x+2)=5x+10\\5x+10=5x+10\\5x-5x=10-10\\0x=0\\ multime vida\\ 2) -7(x+3)=-7-21\\ -7x-21=-7-21\\-7x=-7-21+21\\-7x=-7\\x=1\\ 3) 8x+4x+3=-8x+4x+5\\ 12x+3=-4x+5\\12x+4x=5-3\\16x=2\\x= \frac{2}{16}= \frac{1}{8}\\ 4) 11x-3x+2=5x+3x+2\\8x+2=8x+2\\0x=0\\multime vida\\ 5) 12x-5x=2(x-15)\\ 7x=2x-30\\7x-2x=30\\5x=30\\x=6\\ 6) -9(x+5)=-4x-3x-49\\-9x-45=-7x-49\\-9x+7x=-45+49\\-2x=4\\x=4:(-2)\\x=-2[/tex]