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kaheart [24]
3 years ago
7

2x+14=22 what is the solution

Mathematics
1 answer:
Kruka [31]3 years ago
4 0

2x+14=22

Move +14 to the other side. Sign changes from +14 to -14.

2x+14-14=22-14

2x=8

Divide by 2 for both sides.

2x/2=8/2

Cross out 2 and 2 , divide by 2 and becomes: 1*1*x=x

x=4

Answer: x=4

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Answer:

The equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}

Step-by-step explanation:

We need to find the equation of line, with the given slope passes through the given point.

Slope m = -4

Point: (-2,-9)

We need to find slope and y-intercept of the line.

The slope of line is given m = -4

Now, we need to find the y-intercept

Using the point (-2,-9) and slope m = -4, we can find y-intercept

The formula used will be: y=mx-b

Putting values of: y= -9, x =-2 and m = -4

y=mx+b\\-9=-4(-2)+b\\-9=8+b\\b=-9-8\\b=-17

So, y-intercept b = -17

Now, the equation of required line having slope m = -4 and y-intercept b = -17 is:

y=mx+b\\y=-4x-17

Writing equation in required form i.e. of Ax + By = C

y=-4x-17\\4x+y=-17

So, the equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}

6 0
3 years ago
4.5 kg equals times one gram
Lynna [10]

Answer:

4500 gr

Step-by-step explanation:

4.5 kg equals some number (n) times one gram.  Solve this for n:

4.5 kg = n(1 gr)

Recall that 1 kg = 1000 gr.  Because of this, the equation above becomes

        4.5 kg          (4.5)(1000 gr)

n = --------------- or ------------------- or 4500 gr

       1000 gr                     1 gr

5 0
3 years ago
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