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2 years ago

5 (2x+1) +4 (x+1)=12(x+2)

Mathematics

1 answer:

svp [43]2 years ago

7 0

Answer:

x=–/-4

Step-by-step explanation:

Let's solve your equation step-by-step.

5(2)(1)+4(x+1)=x+2

Step 1: Simplify both sides of the equation.

5(2)(1)+4(x+1)=x+2

5(2)(1)+(4)(x)+(4)(1)=x+2(Distribute)

10+4x+4=x+2

(4x)+(10+4)=x+2(Combine Like Terms)

4x+14=x+2

Step 2: Subtract x from both sides.

4x+14−x=x+2−x

3x+14=2

Step 3: Subtract 14 from both sides.

3x+14−14=2−14

3x=−12

Step 4: Divide both sides by 3.

−12

x=−4

Answer:

x=−4

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Step-by-step explanation:

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3 years ago

A recent survey found that 7575% of all adults over 50 wear glasses for driving. In a random sample of 4040 adults over 50, wh

malfutka [58]

Answer:

Mean = 30

standard Deviation = 2.74

Step-by-step explanation:

Formula

mean = np

Standard Deviation = $\sqrt{npq}$

from the question = 40

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To find mean

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2 years ago

5. Simplify<br> (7x2+ 8) - (x2 - 2)

Gennadij [26K]

Answer:

$(7 \times 2 + 8) - ( {x}^{2} - 2) \\ (14 + 8) - ( {x}^{2} - 2) \\ 14 + 8 - {x}^{2} + 2 \\ 22 + {x}^{2} + 2 \\ 24 + {x}^{2}$

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3 years ago

2/3 of a number -11. Please help

vfiekz [6]

Answer:

(2/3)x = -11

x = -33/2

Step-by-step explanation:

2/3 of a number is -11.

Let the unknown number be x.

2/3 of x is -11.

(2/3)x = -11

Multiply both sides by 3/2.

(3/2)(2/3)x = (3/2)(-11/1)

x = -33/2

8 0

3 years ago

5 (2x+1) +4 (x+1)=12(x+2)​

5 (2x+1) +4 (x+1)=12(x+2)