Question 2 (5 points) (02.01 LC)
2x - 10
Solve:
= Bx (5 points)
-10
Ob
-1
Ос
2
Od
11

B. -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define

Step 2: Solve for x

Multiply 4 on both sides:                    Subtract 2x on both sides:                 Divide 10 on both sides:                     Rewrite:                                              

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    Multiply:                               Subtract:                              Divide:                                

Here we see that -3 does indeed equal -3.

∴ x = -1 is a solution of the equation.

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