Question

Solve for x in the equation 2.2 + (2/7)x = 6.5.

A) x = 5
B) x = 6
C) x = 7
D) x = 8

Answer 1

Solving the equation 2.2 + (2/7)x = 6.5 for x involves isolating x and then multiplying by the reciprocal of its coefficient. The correct solution is x = 15.05, which is not one of the provided options, indicating a possible error in the question or options.

Step-by-step explanation:

To solve for x in the equation 2.2 + (2/7)x = 6.5, first subtract 2.2 from both sides to isolate the term with x on one side of the equation:

2.2 + (2/7)x - 2.2 = 6.5 - 2.2

(2/7)x = 4.3

Now, multiply both sides by the reciprocal of (2/7) to solve for x:

(7/2) * (2/7)x = 4.3 * (7/2)

x = 15.05

Since 15.05 is not one of the options provided, there may be a mistake in the question or the provided options. However, the correct value of x calculated from the given equation is 15.05.