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svet-max [94.6K]
3 years ago
8

7 + X = 2x - 5 7 Solve 3

Mathematics
1 answer:
Anna11 [10]3 years ago
8 0

Answer:

x=12

Step-by-step explanation:

7+x=2x-5

12=1x

x=12

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Answer:

t + f = 2000

let  represent the amount invested at three percent; let f represent the amount invested at five percent. The total of these amounts is $20,000. The total of the interest earned by each amount is $800. Of course the interest earned is the amount multiplied by the interest rate.

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3 years ago
Solve for x. x2 + 7x + 10 = 0
algol13
The answer is negative 80 or like this -80
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Which function is graphed? ​
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x-intercept=(-1,0) y-intercept =(0,-3)

Step-by-step explanation:

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What x 3 = 120.<br><br> 2x what = 120
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Step-by-step explanation: have a good day

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3 years ago
Find the missing value of the ordered triple that will make the solution to the equation x + 2y – 3z = 8 true.
erica [24]

The missing value of the ordered triple for questions 7,8,9 and 10 will be  y=2,x=6,z=0, and z=-5 respectively.

<h3>What is the equation?</h3>

A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.

The given equation in the problem is;

7) (4, ,0)

Substitute the values in the equation;

⇒x+2y-3z = 8,

⇒4+2y-3(0) = 8

⇒2y=8-4

⇒2y=4,

⇒y=4/2

⇒y=2

8) (, -2, -2)

Substitute the values in the equation;

   

x+2(-2) -3(-2)= 8

x-4+6 =8

x= 8-6+4

x=8-6+4

x=6

9)(2, 3, )

Substitute the values in the equation;

⇒2+2(3)-3z = 8

⇒8-3z = 8

⇒-3z = 0

⇒z = 0/-3

⇒z= 0

10) (-3, -2, )

Substitute the values in the equation;

   

⇒-3+2(-2) -3z = 8

⇒-7 -3z = 8

⇒-3z = 15

⇒z = 15/-3

⇒z = -5

Hence, the missing value of the ordered triple for questions  7,8,9, and 10 will be  y=2,x=6,z=0, and z=-5 respectively.

To learn more, about equations, refer;

brainly.com/question/10413253

#SPJ1

4 0
2 years ago
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