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klemol [59]
3 years ago
6

Evaulate and solve for the variable ! -2x + 3x - 5 = 6 - 21

Mathematics
1 answer:
Svetlanka [38]3 years ago
8 0

Answer:

x = - 10

Step-by-step explanation:

Step 1:

- 2x + 3x - 5 = 6 - 21          Equation

Step 2:

x - 5 = - 15          Combine Like Term

Step 3:

x = - 15 + 5       Add

Answer:

x = - 10

Hope This Helps :)

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Step-by-step explanation:

7 0
3 years ago
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How many solutions does the system of equations have?
lora16 [44]
As 27 will always be equal to 27, you can place whatever you want for x and y and the equation would still be satisfied, as it turns out that it doesn't depend on the x or y value.
Therefore, the system has infinite solutions.

Be safe!

7 0
4 years ago
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2n=4x+2y;n<br><br>find the variable n
Alenkinab [10]

2n=4x+2y\qquad|\text{divide both sides by 2}\\\\n=\dfrac{4x}{2}+\dfrac{2y}{2}\\\\n=2x+y

7 0
3 years ago
The length of the long leg of a right triangle is 16 inches more than four times of the shorter leg. The length of the hypotenus
Galina-37 [17]

Answer:

The side lengths of the triangle, in order, are 11 inches, 60 inches, 61 inches.

Step-by-step explanation:

Let the shorter leg be x, the longer leg, y and the hypotenus, z.

y = 16 + 4x

z = 17 + 4x

By Pythagoras rule,

z^2 = x^2 + y^2

(17+4x)^2 = x^2 + (16+4x)^2

that is,

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By factorising,

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either x = -3 or x = 11.

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x = 11 inches

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8 0
3 years ago
How many solutions does each equation below have? how can you tell?
Vikki [24]
A) This one has no solutions because the answer of the equation is 0=-1 which isn't true.

b) 6t-3=3t+6  ==>  3t=9  ==>  t=3  This means that this has one solution.

c) 6 (2m-3)-3m=2m-18+m  ==> 12m-18=2m-18+m  ==> 9m=0  ==> m=0 so this one has no solutions. 

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~Hope I helped!~
8 0
3 years ago
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