solve the equation. 8.5 = 6.5(2d - 3) + d d = □

Explanation:

Step1: Expand the right - hand side

$8.5=6.5\times2d-6.5\times3 + d$ $8.5 = 13d-19.5 + d$

Step2: Combine like terms

$8.5=13d + d-19.5$ $8.5 = 14d-19.5$

Step3: Add 19.5 to both sides

$8.5 + 19.5=14d-19.5 + 19.5$ $28 = 14d$

Step4: Divide both sides by 14

$\frac{28}{14}=\frac{14d}{14}$ $d = 2$

Answer:

$2$