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OlgaM077 [116]
3 years ago
12

Solve for x: 3 − (2x − 5) < −4(x + 2)

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0

Answer:

A. x < -8 (first option)

Step-by-step explanation:

3 - (2x - 5) <  - 4(x + 2)

3 - 2x + 5 <  - 4x - 8

8 - 2x <  - 4x - 8

- 2x + 4x <  - 8 - 8

2x <  - 16

\boxed{\green{x <  - 8}}

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Prove algebraically that each expression has the same value by evaluating each expression for y=5:
Illusion [34]

Answer:

See explanation

Step-by-step explanation:

Given two expressions

7(3y-5)-2(10+4y)

and

13y-55

Substitute y = 5 into each expression:

1.

7(3y-5)-2(10+4y)\\ \\=7(3\cdot 5-5)-2(10+4\cdot 5)\\ \\=7\cdot (15-5)-2\cdot (10+20)\\ \\=7\cdot 10-2\cdot 30\\ \\=70-60\\ \\=10

2.

13y-55\\ \\=13\cdot 5-55\\ \\=65-55\\ \\=10

As you can see the results are the same.

7 0
4 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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4 years ago
F(x)=x^2. what is g(x)?
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3 years ago
How to solve <br> Y+2=4<br> Y-2=8
lakkis [162]

Answer:

First question -> y = 2

Second question -> y = 10

Step-by-step explanation:

<u>Step 1:  Solve y + 2 = 4</u>

Subtract 2 from both sides

y + 2 - 2 = 4 - 2

<em>y = 2</em>

<em />

<u>Step 2:  Solve y - 2 = 8</u>

Add 2 to both sides

y - 2 + 2 = 8 + 2

<em>y = 10</em>

<em />

Answer:  First question -> y = 2

               Second question -> y = 10

8 0
3 years ago
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