To simplify the given expression, we will distribute the coefficients:
(0.7x + 0.6y)5 - 3(0.4y - 1.5x)= 5(0.7x) + 5(0.6y) - 3(0.4y) - 3(-1.5x)= 3.5x + 3y - 1.2y + 4.5x= 3.5x + 4.5x + 3y - 1.2y= 8x + 1.8y
Therefore, the simplified expression is 8x + 1.8y.
To simplify the given expression, we will distribute the coefficients:
(0.7x + 0.6y)5 - 3(0.4y - 1.5x)
= 5(0.7x) + 5(0.6y) - 3(0.4y) - 3(-1.5x)
= 3.5x + 3y - 1.2y + 4.5x
= 3.5x + 4.5x + 3y - 1.2y
= 8x + 1.8y
Therefore, the simplified expression is 8x + 1.8y.