Respuesta :

2(10x+15)=26

-Divide by 2 both sides

10x+15=13

-move the constant to the right

10x=13-15

- combined the right side

10x=-2

-divide by 10 to both sides
X=-1/5 or x=-.2

2(10x+15)=26

distribute 2

20x+30=26

subtract 30 from both sides

20x=-4

divide both sides by 20

x=-4/20

simplify

x=-1/5