use distributive property to simply 0.75(3.5a-6b)
0.75 × 3.5a = 2.625a0.75 × 6b = 4.5byour answer is 2.625a - 4.5b
Mulitiply everything on the outside of the brackets to everything inside so: 0.75 • 3.5a = 2.625a And 0.75 • 6b = 4.5b2.625a - 4.5b would be your simplified answer