Im s lost ill give a brainliest to the best answer that has all work shown and correct answers and makes sense. (variables on both sides of an equation) solve: 6(a+3)=18+6a

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.