\(3.8x-(-1-9.7x)=2.6+13.3x\\ 3.8x{\color{red}+}-{\color{red}1} (-1-9.7x)=2.6+13.3x\\ 3.8x\qquad +1+9.7x\quad =2.6+13.3x\\ 3.8x\qquad +9.7x +1\quad =2.6+13.3x\\ \qquad 13.5x \qquad+1\quad =2.6+13.3x\\ \text{now subtract 13.3x from both sides}\\ \qquad 0.2x \qquad+1\quad =2.6\\ \text{ Now subtract 1 from both sides }\\ \qquad 0.2x \qquad \qquad =1.6\\ \text{ Now divide both sides by 0.2 }\\ \qquad x \qquad \qquad =1.6\div 0.2\\ \qquad x \qquad \qquad =8\\ \)
.\(3.8x-(-1-9.7x)=2.6+13.3x\\ 3.8x{\color{red}+}-{\color{red}1} (-1-9.7x)=2.6+13.3x\\ 3.8x\qquad +1+9.7x\quad =2.6+13.3x\\ 3.8x\qquad +9.7x +1\quad =2.6+13.3x\\ \qquad 13.5x \qquad+1\quad =2.6+13.3x\\ \text{now subtract 13.3x from both sides}\\ \qquad 0.2x \qquad+1\quad =2.6\\ \text{ Now subtract 1 from both sides }\\ \qquad 0.2x \qquad \qquad =1.6\\ \text{ Now divide both sides by 0.2 }\\ \qquad x \qquad \qquad =1.6\div 0.2\\ \qquad x \qquad \qquad =8\\ \)