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aksik [14]
3 years ago
7

If 2x + 3z = 12, and z = -2, then x=6 true or false

Mathematics
1 answer:
zalisa [80]3 years ago
4 0
2x + 3z = 12 <span>and z = -2, then x=6 
</span><span>
2x + 3(-2) = 12
2x = 18
  x = 9

answer

False </span>
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olganol [36]
The square root of 17 is an irrational number
7 0
3 years ago
Help pls ASAP <br><br><br> Thanks
dezoksy [38]

Answer:

y = 3

y = 5

(last answer choice)

Step-by-step explanation:

A system of equation is given in "x" and "y".

For it to have a solution, there should be a value for x and a value for "y".

There needs to be 2 values, one for x and another for y.

It doesn't matter if the values of x and y are same, but there needs to be one value of x and one value of y (if linear equations).

First one has a value of x = 5 and y = 3, so there are 2 values, one for x and another for y, distinct values. So it's okay.

The second one has 2 values for x and y, respectively. THey are same, doesn't matter. So, this one is okay as well.

The last one has NO VALUE for x and has 2 values for y. So, this one doesn't have a proper solution.

So, the last one of the choices shown has NO SOLUTION.

8 0
3 years ago
What are the roots of the equation?<br> x2 + x - 6 = 0
Yakvenalex [24]
X2+x-6=0

Your answer:
x = 2, -3
8 0
3 years ago
Pls help me give u a brainlest
neonofarm [45]

Answer:

uhmm. lemme remember how to do that

4 0
3 years ago
Read 2 more answers
3 - what = 11<br><br> please help with this one
SOVA2 [1]
So we can set up a simple equation for this, where the word “what” is a variable, x. This equation is 3 - x=11. Then we subtract 3 from both sides, giving us -x=8. We can divide both sides by -1, giving us x=-8. The answer would be -8. Hope this helped.
3 0
2 years ago
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