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Anna35 [415]
3 years ago
12

Using substitution how do u solve 3y+2x=6 and 5y-2x=10

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
7 0
<span>3y+2x=6
5y-2x=10
--------------add
8y = 16
y = 2

</span>3y+2x=6
3(2)+2x=6
6 + 2x = 6
2x = 0
x = 0

answer: x = 0 and y = 2 or (0,2)
Viefleur [7K]3 years ago
5 0
The answer is x=-9 and y=8
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2/3x=10 thankyou for helping me
Novay_Z [31]
(2/3)x = 10
(3/2)(2/3)x = 10(3/2)
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Step-by-step explanation:

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3 years ago
Solve the equation, and check the solutions (√x+3)+6=3.
larisa86 [58]

Answer:

The equation has no solution.

Step-by-step explanation:

Hi there!

First, let´s write the equation:

(√x + 3) + 6 = 3

To solve the equation, let´s subtract 6 to both sides of the equation:

√x + 3 = -3

subtract 3 to both sides of the equation:

√x = -6  (the square root of any number can´t be negative, but let´s solve it anyway and then check the solution).

Square both sides of the equation:

x = 36

Now, let´s check the solution:

(√x + 3) + 6 = 3

x = 36

(√36 + 3) + 6 = 3

(6 + 3) + 6 = 3

9 + 6 = 3

15 ≠ 3

Then, the equation has no solution.

Have a nice day!

6 0
3 years ago
A function follows the rule y = -75 - 5 x . When the function's output is 25, the equation is 25 = -75 - 5 x .
zhenek [66]

Answer:

same here idek tbh

Step-by-step explanation:

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