Question

Solve 4.3t + 6.8 = 8.4t – 7.55 for t.

Question 1 options:

A)

3.5

B)

–0.18

C)

–3.5

D)

–1.13

Answer 1

A) 3.5

Explanation:

Solving the equation:

• First bring all the terms with variable 't' to one side of the equation.

4.3t + 6.8 = 8.4t - 7.55

Subtract 8.4t from both sides,

4.3t - 8.4t +6.8 = -7.55

Combine like terms,

-4.1t + 6.8 = -7.55

• Now isolate 't'

To isolate 't' first subtract 6.8 from both sides.

-4.1t = -7.55 - 6.8

-4.1t = -14.35

Divide both sides by (-4.1)

t = -14.35 ÷ (-4.1)

t = 3.5