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sattari [20]
3 years ago
12

To replace a number with another number that tells how many or how much

Mathematics
1 answer:
Papessa [141]3 years ago
8 0
It's subtraction or multiplacation
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12 + 2x - x = 9x + 6 <br><br><br> I need help!!
stich3 [128]

Answer:

3/4

Step-by-step explanation:

Start by simplifying (2x-x) to just (x)

The equation should now look like this: 12+x=9x-6

Now subtract the x on the left side of the equation on both sides.

The equation should now look like this: 12=8x-6

Now add 6 on both sides

The equation should now look like this: 6=8x

To get x by itself you must divide 8 on both sides

The equation should now look like this 6/8=x

Don't forget to simplify your fractions!

6/8 simplified is 3/4, giving you the answer 3/4

3 0
3 years ago
A line passes through tge points (1,-3) and (4,6) what is the zero of this line ?
Maru [420]

Answer:

<em>The zero of the line is (2,0)</em>

Step-by-step explanation:

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as:

\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

We are given the points (1,-3) and (4,6). Substituting:

\displaystyle y+3=\frac{6+3}{4-1}(x-1)

Operating:

\displaystyle y+3=\frac{9}{3}(x-1)

y+3=3(x-1)

The zero of this line can be found by making y=0 and solving for x:

0+3=3(x-1)

3=3x-3

Adding 3:

6=3x

Solving:

x = 2

The zero of the line is (2,0)

3 0
2 years ago
Use the distributive property to write an expression equivalent to 15(5+n)
Ratling [72]
The answer is i beleve 75+15n
8 0
2 years ago
Cedric and Insha solved the same equation using the calculations below.
Mariulka [41]

The first working out is correct, z = 3

3 0
3 years ago
The sum of 3 consecutive odd numbers is 51. What is the second number in this sequence?
Feliz [49]
2n+1+2n+3+2n+5=51\\&#10;6n+9=51\\&#10;6n=42\\&#10;n=7\\\\&#10;2n+3=2\cdot7+3=17
4 0
3 years ago
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