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3 years ago

Is it true that x= -5 ? -2(-4x-1)-x+3=−30 Justify your answer.

Mathematics

2 answers:

grandymaker [24]3 years ago

6 0

Answer:

Step-by-step explanation:

here you go mate

step 1

-2(-4x-1)-x+3=−30 equation/Question

step 2

-2(-4x-1)-x+3=−30 distribute

7x+5=-30

step 3

7x+5=-30 subtract 5

7x=-35

step 4

$\frac{7x}{7} =\frac{-35}{7}$ divide

answer

x=-5

nikitadnepr [17]3 years ago

3 0

Answer:

-2(-4x-1)-x+3=-30

8x+2-x+3=-30

7x+5=-30

7x=-30-5

7x=-35

x=-35÷7

x=-5

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1 year ago

What values of a and b make the equation true? StartRoot 648 EndRoot = StartRoot 2 Superscript a Baseline times 3 Superscript b

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Explanation:

Given that the expression $\sqrt{648}=\sqrt{2^a\times3^b}$

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Let us consider the term $\sqrt{648}$ and take the prime factorization of the term 648

Thus, we have,

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Thus, Option C is the correct answer.

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