5x+3=6(x-2)+2×45x+3=6*x-6*2+85x+3=6x-12+85x=6x-4-35x-6x=-7-x=-7x=7
5x+3=6x-12+8 7=x
5X+3=6X-12+8 5X-6X=-12+8-3-X=-7X=7