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Vitek1552 [10]
2 years ago
10

What do i do to find the value of an expression

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
7 0

Answer:

A variable is a letter, for example x, y or z, that represents an unspecified number.

6+x=12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

Step-by-step explanation:

6z+4x=?

 

Solution: Replace x with 3 and z with 2 to evaluate the expression.

6z+4x=?

6⋅2+4⋅3=?

12+12=24

Hope this helps @(^_^)@

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Which property is illustrated by the equation 2+8=8+2?
vodomira [7]

Answer:

communicative, you can remember this by saying  (the rule for the communicative property, is as easy as can be, just remember a+b is the same as b+a )

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Graph the equation <br><br>2x + 3y = 9
jeka57 [31]

2x + 3y = 9\\3y = -2x + 9\\y = -\frac{2}{3}x + 3

Look at the graph picture I attached

y = mx + c

c is the intercept, which is why the graph crosses the y-axis at +3

to find where it crosses the x-axis, we make y = 0

y = 0\\\to -\frac{2}{3}x + 3 = 0\\-\frac{2}{3} = -3\\\frac{2}{3}x = 3\\2x = 9\\x = \frac{9}{2}\ \ (=4.5)

8 0
2 years ago
Find x.<br>I need the answer asap, please.​
Nezavi [6.7K]

Answer:

x=28

Step-by-step explanation:

x+24+100+x=180

x+124+x=180

2x+124=180

2x=180-124

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6 0
2 years ago
What number can go into 21 and 27
astra-53 [7]

3 only

Hope this helps

4 0
2 years ago
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PLASE HELP ASAP, brainly &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt
oksian1 [2.3K]

I Hope That I Am Not To Late, But The Answer Is D (7,4) <3

<u>Explanation </u>

2 x 7 = 14

5 x 4 = 20

14-20= -6

>>>

2 x 7= 14

7 x 4 = 28

14-28= -14

X= 7 & Y=4

Once again sorry if i am late, if others come I hope this helps UwU

7 0
2 years ago
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