7x 15 4 x 3 July 8, 2019 16 32 64 128 7x 15 4x 3 x 3 7x 15 x 28 4x 3 4 7x 15 1 x 3 4 2x 1 5 7x 15 3 x 12 )+ 4 x 1 Solve 4 x 3 )= 7x 15 2 4x 15 )= 7x 3 3 x 5 )= 7x 15 4x 5x 15 7x 4x 3 4x 15 7x 39 7x 3y 15 4x 12y 60 4x 3x 5 7x 15 3x 2 1 5x )+ 15 7x 4 x 2
