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Question

4x - 1.6 = (2x + 2)3 + 4.4 - For what value of x, will the above equation be satisfied?


Your Answer
A
- 1
Your Answer
B
- 2
Your Answer
C
- 4
Correct Answer
D
- 6

Solution

The correct option is D - 6
Step 1:
Keep variables on one side and constants on the other.

4x - 1.6 =  6x + 6 + 4.4
4x - 1.6 = 6x + 10.4

Adding 1.6 on both sides
4x = 6x + 12
Adding -6x on both sides
-6x + 4x = -6x + 6x + 12
-2x = 12

Step 2:

Solve for x

Dividing both sides by -2
x = -6

 

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