2+3(x-5)=15
Multiply the bracket by 3
(3)(x)=3x
(3)(-5)=-15
2+3x-15=15
2-15+3x=15 ( rearranging)
-13+3x=15
move -13 to the other side
sign changes from -13 to +13
-13+13+3x=15+13
3x=28
divide both sides by 3 to get x by itself
3x/3=28/3
Answer:
x=28/3 and x= 9 1/3