Question

5x + 2x = 84
x =

Explanation:

Step1: Combine like terms

Combine \(5x\) and \(2x\) on the left side of the equation. Since \(5x + 2x=(5 + 2)x\), we have \(7x = 84\).

Step2: Solve for \(x\)

Divide both sides of the equation \(7x = 84\) by 7. So \(x=\frac{84}{7}\).

Step3: Calculate the result

\(\frac{84}{7}=12\).

Answer:

\(x = 12\)