Question

Find the difference (-6d + 2) - (7 + 2d)

Answer 1

2+(-7)+(-6d)+(-2d)=0
-5+(-8d)=0
-5+5-8d=0+5
-8d=5
d=-0.625

Answer 2

-8d - 5

Explanation:

Subtracting expressions:

We can subtract two expressions, by combining the like terms. Like terms have same variable with same power.

(-6d + 2) - (7 + 2d)

• Open the parenthesis, by multiplying each term of the expression (7 +2d) by (-1)

(-6d + 2) - (7 + 2d) = -6d + 2 - 7 - 2d

• Now, combine the like terms. To combine like terms, add or subtract the coefficient of the like terms.

= -6d - 2d + 2 - 7

= -8d - 5

Answer: -8d - 5