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alexandr402 [8]
3 years ago
7

How do we figure out the value of a variable?

Mathematics
2 answers:
mafiozo [28]3 years ago
8 0

Answer:

To figure out the value of a variable you plug it into an equation solve for it using the equation around it.

Margaret [11]3 years ago
5 0

Answer:

Step-by-step explanation:

Solve for the unknown variable(number) by moving everything to the other side of the equation.

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6x+3(4x-2)=5(2x-8) the answer is -17/4 but can someone explain how to get that answer? plz help lol​
Sergeu [11.5K]

Answer:

<h2>x =  -  \frac{17}{4}</h2>

Step-by-step explanation:

6x + 3(4x - 2) = 5(2x - 8)

Expand the terms in the bracket and simplify

That's

6x + 12x  - 6 = 10x - 40 \\ 18x - 6 = 10x - 40

Using the subtraction property subtract 10x from both sides of the equation

18x - 10x - 6 = 10x - 10x - 40 \\ 8x - 6 =  - 40

<u>Add 6 to both sides of the equation</u>

8x + 6 - 6 =  - 40 + 6 \\ 8x =  - 34

<u>Divide both sides by 8</u>

\frac{8x}{8}  =  -  \frac{34}{8}

<u>Reduce the fraction with 2</u>

We have the final answer as

x =  -  \frac{17}{4}

Hope this helps you

7 0
3 years ago
Solve by using elimination. Express your answer as an ordered pair.
12345 [234]

Answer:

(-2, 5)

Step-by-step explanation:

we subtract 6x+3y=3 by 2x+3y=11 to get 4x=-8.

we divide both sides by 4 to get x. x=-2

We subsitute -2 for the second equation to get:

2(-2)+3y=11

=-4+3y=11

=3y=15

y=5

4 0
3 years ago
Read 2 more answers
Se lanza dos dado, ¿Cuál es la probabilidad de obtener 10 puntos?
LekaFEV [45]
3/36 o 1/12 <span>oportunidad</span>

3 0
3 years ago
Is 89 prime or composite
Ratling [72]
It is a prime number. 89=1×89 hope it helps
8 0
3 years ago
Which number is bigger: 0.135 or 0.14?
Fofino [41]
0.14 as if you convert it into like decimal (add a 0 if the places are not the same e.g. 0.1 and 0.02 here 0.1 does not have the same number of digits so add a zero so it becomes 0.10 :. 0.10 is bigger then 0.02) (note the value of 0.1 will remain the same) so here 0.14 will become 0.140 :. bigger than 0.135

3 0
2 years ago
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