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3 years ago

Given : 2x+8=5x-13; prove x=7

Mathematics

2 answers:

spayn [35]3 years ago

8 0

<em><u>Step-by-step explanation:</u></em>

If we want to prove that x is equal to seven, we should first solve the equation for x so:

2x + 8 = 5x - 13

We should first add 13 on both sides and subtract 2x from both sides:

2x + 8 + 13 - 2x = 5x - 13 + 13 - 2x

21 = 3x

We can then divide both sides by 3 to get:

x = 7

solmaris [256]3 years ago

7 0

Answer:

True

Step-by-step explanation:

The left side 22 is equal to the right side 22 , which means that the given statement is always true.

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Which graph represents the solution?

marusya05 [52]

Answer:

Step-by-step explanation:

Given the inequality :

v + 4 > 2 and 8v - 20 < 36

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3 years ago

Suppose your family spent $2438.67 on home energy last year. Estimate the amount spent on heating and cooling, rounded to the

Minchanka [31]

Answer:

The answer is "1200".

Step-by-step explanation:

The percentage value for $\frac{heating}{cooling}= (48 \% )$

So,

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rounding the value into the nearest hundred =1200

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3 years ago