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18 votes
Solve the following equation.
-12d - 6 = -2(d + 3) - 10d

User EthanBar
by
3.9k points

2 Answers

5 votes

Answer:

This is true for any value of d. (d โˆˆ Set of All Real Numbers (I couldn't find the symbol))

Explanation:

1. Simplify both sides. You cannot simplify -12d - 6, but you can simplify -2(d + 3) - 10d. Use the distributive property to simplify this. It would be -2d + -2 * 3 -10d, which is equal to -12d - 6. If you simplify both sides, you would get that d=d, which would be true for all values of d, which means that d is equal to all real numbers, meaning that for any value for d, this would be true (d โˆˆ Set of All Real Numbers (I couldn't find the symbol)).

User Wirrbel
by
4.4k points
9 votes

Answer:

All real numbers

Explanation:

Distribute the -2 to the parentheses:

-12d - 6 = -2(d + 3) - 10d

-12d - 6 = -2d - 6 - 10d

Add like terms:

-12d - 6 = -12d - 6

Since each side is equivalent to -12d - 6, the answer is all real numbers

User Ndrplz
by
3.4k points