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2 years ago

How can you tell if the expression 7x-4 and 6x-4-x are equivalent

Mathematics

1 answer:

olga_2 [115]2 years ago

8 0

Answer:

see below

Step-by-step explanation:

7x-4 6x-4-x

Combine like terms on the second expression

7x -4 6x -x -4

5x -4

These are not equivalent expressions

7x -4 does not equal 5x-4

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2 years ago

Verify that the segments are parallel

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2 years ago

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3 years ago

The sum of a number times 7 and 21 is at least 29. Write as an inequality

PtichkaEL [24]

The inequality is 7x + 21 $\leq 29$

Step-by-step explanation:

DATA:

Let the number be x

Number times 7 = 7*x

Sum of a number times 7 and 21 = 7x + 21

Is at least 29

INEQUALITY:

7x + 21 $\leq 29$

SOLVE:

7x $\leq 29-21$

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x $\leq \frac{8}{7}$

Therefore, the inequality is 7x + 21 $\leq 29$

Keyword: Inequality

Learn more about inequality at

#LearnwithBrainly

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