3 years ago

-3x-7 ≤11 solve, please

Mathematics

1 answer:

Rom4ik [11]3 years ago

7 0

Answer:

x ≥ -6

Step-by-step explanation:

-3x-7 ≤ 11

-3x-7+7 ≤ 11+7

-3x ≤ 18

(-3x)(1) ≤ 18(-1)

3x ≤ -183x/3 ≤ -18/3

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6. – 4y + 8x = 32 for y

MatroZZZ [7]

Answer:

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Step-by-step explanation:

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3 years ago

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algol [13]

Answer:

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Step-by-step explanation:

When an equation is in the format a/b = c/d, the quickest way to simplify it is to cross multiply. Each side is multiplied by the other sides denominator, eliminating the division:

$\frac{7}{z-1} = \frac{9}{z + 4}\\7(z + 4) = 9(z - 1)\\7z + 28 = 9z - 9\\7z - 9z = -9 - 28\\-2z = -37\\z = 37/2\\z = 18.5$

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3 years ago

Simplify the expression. <br> 4/5-7/9+1/5

lys-0071 [83]

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3 years ago

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Answer:

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Step-by-step explanation:

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