Apply the order of operations (PEMDAS). Solve the parentheses first: 3+2=5. Then multiply: 7×5=35.
To check equivalence, simplify 6/8 by dividing the numerator and denominator by their greatest common factor (2). This gives 3/4. .
The area of a rectangle is calculated as length×width. Multiply: 8×5=40.
The sequence doubles each term. The 6th term is 2×2×2×2×2×2=64.
Subtract 3 from both sides: 5x=20. Then divide by 5: x=4.