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3 years ago

Select all of the equations that are equivalent to 3 x − 12 = 19

Mathematics

2 answers:

nydimaria [60]3 years ago

7 0

Answer:

X=2

Step-by-step explanation:

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Explanation:

Collect terms in x on the left side of the equation and numeric values on the right side.

add 3x to both sides.

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⇒

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subtract 12 from both sides.

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⇒

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To solve for x, divide both sides by 8

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⇒

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As a check

Substitute this value into the equation and if the left side is equal to the right side for this value then it is the solution.

left side

(

−

)

−

right side

−

(

−

)

−

⇒

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is the solution

Jobisdone [24]3 years ago

4 0

Answer:

b Beacuse you can't times 3 by twelve but you can multiple 3times7+1 to get 19

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3 years ago

Read 2 more answers

Solve for x<br> x^9=12^2x12^7

jekas [21]

Answer:

Step-by-step explanation:

Hi!

Here is your answer,

I will explain in step by step,

${x}^{9} = {12}^{2} \times {12}^{7}$

Here we can simplify this further using this law,

${a}^{m} \times {a}^{n} = {a}^{m + n}$

So we will get,

${x}^{9} = {12}^{7 + 2} \\ {x}^{9} = {12}^{9}$

Since the powers are same we can cancel it out and we will get,

$x = 12$

(Hope this answer helped :))

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3 years ago