124k views
2 votes
What is the solution set of the following equation?

-8x + x + 15 = -7x + 12

A) Ø
B) (1/7)
C) (all reals)

2 Answers

5 votes
the solution to this problem is A.
User Moe Far
by
8.4k points
5 votes

Answer:

Option A)
\phi is the solution set for given equation.

Explanation:

We are given the following equation in the question:


-8x + x + 15 = -7x + 12

Solving the given equation, we have:


-8x + x + 15 = -7x + 12\\-7x + 15 = -7x + 12\\-7x + 7x + 15 = -7x + 7x + 12\\15 = 12\\\text{which is never possible}

Hence the given equation has no solution.

Thus, the solution set can be represented by a null set which can be represented as
\phi

Option A)
\phi is the solution set for given equation.

User Lekterable
by
7.5k points

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