Question

Can some1 help me with grade7s math?

Answer 1

`8-2b=-(2)/(3)(12b+6)\\ 8-2b=-8b-4\\ 6b=-12\\ b=-2\\\\ -5=(8m+12)/(4)\\ -5=2m+3\\ 2m=-8\\ m=-4\\\\ -12j+4=-4-12j\\ 4=-4\\ j\in\emptyset \Rightarrow A`


`5x+7=(1)/(2)(10x+12)\\ 5x+7=5x+6\\ 7=6\\ x\in \emptyset \Rightarrow B\\\\ -(1)/(9)(18x+27)=1+x-4-3x\\ -2x-3=-2x-3\\ 0=0\\ x\in\mathbb{R} \Rightarrow C\\\\ (x+3)/(4)=(3)/(4)x+(3)/(4)|\cdot4\\ x+3=3x+3\\ -2x=0\\ x=0 \Rightarrow A\\\\ 4+3x=2x-10\\ x=-14 \Rightarrow A`