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makkiz [27]
3 years ago
9

2(x-3)-12 = -4 How do I solve this equations

Mathematics
1 answer:
deff fn [24]3 years ago
3 0

Answer:

x= 7

Step-by-step explanation:

1st step: Multiply the factor (outside number) with the numbers and variable(s) in the box. This results in 2(x-3) = 2x-6

2nd Step: continue the rest of the equation since there are no more brackets left so 2x-6-12=-4

3rd Step: send -12 to the other side of the equation (side changes sign changes) so it will become 2x-6=-4+12    (You are actually supposed to make the variable alone on one side of the equation so that you would be able to calculate its value)

4th step: 2x-6=8 ---> send -6 to the other side as well which will then result in 2x=14

5th step: since 2 is being multiplied by x, when you send it to the other side (to make x alone) you will divide 14 by 2 ( sign of 2 changes from multiplication to division)

Final Step: x=7

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Find the values. Question 1. Thanks!
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Answer:

x=5 and y=8

Step-by-step explanation:

Find x:

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-x          -x

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----   ----

2       2

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Find y:

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----   -----

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7 0
3 years ago
The plane 15x − 12y + 20z = 60 is represented by which graph below? Notice the z-axis.
nikdorinn [45]

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b

Step-by-step explanation:

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8 0
2 years ago
Which graph shows the solution to the system of linear inequalities?<br> y&lt; 2x-5<br> y&gt;-3x + 1
trapecia [35]

Answer:

See explanation

Step-by-step explanation:

Plot the solution sets to both inequalities.

1. For the inequality y First, plot the dotted line y=2x+5 (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

2\cdot 0-5=-5

so the origin does not belong to the needed part. Shade the part, which does not include origin.

2. For the inequality y>-3x+1. First, plot the dotted line y=-3x+1 (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

-3\cdot 0+1=1>0

so the origin does not belong to the needed part. Shade the part, which does not include origin.

3. Find the common region of these two shaded parts - this is the solution to the system of two inequalities.

5 0
3 years ago
Solutions to 39=4-7v
pishuonlain [190]
V = -5 because you subtract 4 from both sides then divide both sides by -7 and you get -5
4 0
3 years ago
Read 2 more answers
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