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3 years ago

10(8x - 11) = 690 rlly need help

Mathematics

2 answers:

egoroff_w [7]3 years ago

6 0

Answer:x=10

Step-by-step explanation:

You will first multiply (8x-11) to 10 to distribute.

You end up with 80x - 110.

You will then add 110 from 690.

You end up with 800.

You will then divide by 80, which will leave you with x=10.

Papessa [141]3 years ago

3 0

Answer:

x = 10

Step-by-step explanation:

80x - 110 = 690

80x = 800

x = 10

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2(2 – 2x) = –3x A. –4 B. 4 C. 6 D. 0

zlopas [31]

Answer:

$x = 4$

Step-by-step explanation:

Let's solve:

$2(2−2x)=−3x$

Step 1: Simplify both sides of the equation.

$2(2−2x)=−3x \\ (2)(2)+(2)(−2x)=−3x(Distribute) \\ 4+−4x=−3x \\ −4x+4=−3x$

Step 2: Add 3x to both sides.

$−4x+4+3x=−3x+3x \\ −x+4=0$

Step 3: Subtract 4 from both sides.

$−x+4−4=0−4 \\ −x=−4$

Step 4: Divide both sides by -1.

$\frac{ - x}{ - 1} = \frac{ - 4}{ - 1}$

Therefore, the answer will be x = 4.

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3 years ago

How would you do this, I am very confused

AfilCa [17]

Triangle has a total of 180 degrees

add up all angles
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9x=171
x=19

Plug x values into the A , B and C expressions and you get your answers

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