3 years ago

Evaluate the following expression at x = -4 -5x-1

Mathematics

2 answers:

Savatey [412]3 years ago

7 0

Answer: 19

Substitute X in the expression :
-5(-4) - 1
-5 • -4 = 20
20 - 1 = 19

ANTONII [103]3 years ago

3 0

All u have to do is 20-1=19

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Read 2 more answers

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puteri [66]

Answer:

$\large\boxed{x9\dfrac{3}{5}\to x\in\left(-\infty,\ -1\dfrac{1}{2}\right)\ \cup\ \left(9\dfrac{3}{5},\ \infty\right)}$

Step-by-step explanation:

$12x+7$

$5x-8>40\qquad\text{add 8 to both sides}\\\\5x-8+8>40+8\\\\5x>48\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}>\dfrac{48}{5}\\\\x>\dfrac{48}{5}\\\\x>9\dfrac{3}{5}\\===========================$