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gulaghasi [49]
2 years ago
5

Solve for x please :- 3(9+x)-31=20

Mathematics
2 answers:
Zolol [24]2 years ago
6 0
27+3x-31=20
-4+3x=20
+4 +4
3x=24
X=8
Mandarinka [93]2 years ago
4 0
<h2>Hello There today we will solve your problem</h2>

\huge\red{\mid{\underline{\overline{\textbf{QUESTION}}}\mid}}

Solve for x please :-

3(9+x)-31=20

_____________________

<h2>Definitions</h2>

To use the distributive property, we need to understand the formula to use it. This formula will ensure that you can easily solve any equation.

The distributive property is A(B + C) = AB + AC, where AB is the product of the values A and B and AC is the product of the values A and C.

First, let's notice that we are distributing a 2 into the parentheses, so we will mark this as our A value.

Then, our two values inside the parentheses are B and C respectfully.

<h3>-Definition by Noble Penguin (Mod)</h3>

_____________________

Apply Distributive property

3(9)+3(x)-31=20\\27+3x-31=20\\3x-31=-7\\3x=24\\x=8

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astra-53 [7]
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8 0
3 years ago
1/3(a+b+c)=z <br>solve a <br>​
Oksanka [162]

<em>Greetings from Brasil...</em>

isolating a:

(a + b + c)/3 = z

(a + b + c) = 3z

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4 0
3 years ago
X + 2y =6<br> X- y =3<br> Solution?
VikaD [51]
Since one equation has a negative y and the other has a positive y, I'm going to use those since they cancel each other out. Before that, the two y's need to be equal to each other.

x+2y=6
x-y=3

Multiply the bottom equation by two so then you have:

x+2y=6
2x-2y=6

The y's now cancel out:

x=6
2x=6

Add them together

3x=12

Divide

x=4.

To find y, plug x into either equation (*don't have to do both, but I will)

(4)+2y=6
(4)-y=3

Subtract four

2y=2
-y=-1

Divide each

2y/2 = 2/2
y=1

-y/-1 = -1/-1
y=1

The answer is:
x=4
y=1

I hope that helps!
4 0
3 years ago
Read 2 more answers
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