exam Maths Puzzle Numerical Ability

Solve the following equation for x, and check your results.
7(3x + 4) = 8(2x + 5) + 13

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exam Other Question

How many cans each with a capacity of 3/8 gallon can be filled from 2 barrels of oil each containing 31 1/2 gallons? Given g(x) = 3x^2 - x + 7, find [g(a + h) - g(a)]/h.

a. 6a + 3h + 1
b. 6a + 3h - 1
c. 6a + 3h + 2
d. 6a + 3h -2
e. none of these