"The sum of a number and nineteen has the same value as one less than the product of that number and five"

x = 5

Step-by-step explanation:

Set up an equation:

x + 19 = 5x - 1

Add 1 to both sides:

x + 20 = 5x

Subtract x from both sides:

20 = 4x

Divide both sides by 4:

x = 5

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step-by-step explanation:

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.