Solve the inequality for x 20x > 8(4x - 5) - 20

Mathematics

2 answers:

Dmitriy789 [7]3 years ago

6 0

Answer:

its -5 not five

Step-by-step explanation:

UNO [17]3 years ago

4 0

Hi there! I can help you with this! First, let's combine like terms and do everything for the right side of the problem. When you do the distributive property, you get 32x - 40. Combine like terms and you'll get 32x - 60. Now, the inequality is 20x = 32x - 60. First, let's subtract 32x from both sides to get the integer by itself. When you do that, you get -12x = -60. Now, divide each side by -12 to isolate the "x". -60/-12 is 5. Let's plug it in. 20 * 5 is 100. 32 * 5 is 160. 160 - 60 is 100. 100 = 100. There. x = 5.

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Serggg [28]

Hii :))

$\tt \: ( \frac{18}{ - 2} ) ^{2} \\ \tt \: = (- \frac{18}{2} ) ^{2} \\ \tt = \frac{-18 \times -18}{-2 \times -2} \\ = \tt \frac{324}{4} \\ = \boxed{\tt\:81}$