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2 years ago

Solve the equation. Ch 6. 10x + 2 = 32

Mathematics

2 answers:

Likurg_2 [28]2 years ago

6 0

Answer:

10x=32-2

10x=30

x=30/10

answer x=3

VladimirAG [237]2 years ago

4 0

X=3,hope this helps!

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Simultaneous equations 5x+y=28 x+y=2

ludmilkaskok [199]

Answer:

Step-by-step explanation:

$5x + y = 28$

$x + y = 8$

Solve the equation for y by moving 'x' to R.H.S and changing its sign

$5x + y = 28$

$y = 2 - x$

Substitute the given value of y into the equation 5x + y = 28

$5x + 2 - x = 28$

Solve the equation for x

Collect like terms

$4x + 2 = 28$

Move constant to R.H.S and change its sign

$4x = 28 - 2$

Subtract the numbers

$4x = 26$

Divide both sides of the equation by 4

$\frac{4x}{4} = \frac{26}{4}$

Calculate

$x = \frac{26}{4}$

Reduce the numbers with 2

$x = \frac{13}{2}$

Now, substitute the given value of x into the equation y = 2 - x

$y = 2 - \frac{13}{2}$

Solve the equation for y

$y = - \frac{9}{2}$

The possible solution of the system is the ordered pair ( x , y )

-------------------------------------------------------------

Let's check if the given ordered pair is the solution of the system of equation:

plug the value of x and y in both equation

$5 \times \frac{13}{2} - \frac{9}{2} = 28$

$\frac{13}{2} - \frac{9}{2} = 2$

Simplify the equalities

$28 = 28$

$2 = 2$

Since , all of the equalities are true, the ordered pair is the solution of the system.

$(x \:, y \: ) = ( \frac{13}{2} \: , - \frac{9}{2})$

Hope this helps....

Best regards!!

5 0

3 years ago

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Step-by-step explanation:

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3 years ago

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Y = 7x − 7z − 9 Solve for X

Novay_Z [31]

Y= 7x - 7z -9
+9    +9 Y+9+7z /7=x
Y+9 = 7x - 7z
+7z    +7z
Y+9+7z = 7x
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6 0

4 years ago

I honestly just need to do long multiplication the question is 278 x 24 Help please

MakcuM [25]

Answer: 278 x 24 = 6672

Step-by-step explanation:

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3 years ago

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A man bought a dozen boxes each with 24 highlighter pens inside for $ 8 each box he repacked these boxes into packages of six hi

hram777 [196]

He brought 12 boxes (dozen) with 24 pens.. okay and each are 8 bucks. 24 x 12 = 288 (pens total)
12 x 8 = $96 (spent total)

6 pens = one package for $3
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3 years ago