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Dmitriy789 [7]
3 years ago
10

List the key words in the equation twice the sum of a number and three is seven and than write the equation

Mathematics
2 answers:
egoroff_w [7]3 years ago
8 0
Twice, sum. and is are the important words.
erik [133]3 years ago
3 0
Key words key words key words
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1. 2x+5(6x-9)=179<br>2. -40=6x-5(-4x-18)<br>solve for X​
pav-90 [236]

Answer:

1. x = 7

2. x = -5

Step-by-step explanation:

1. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: 2*x+5*(6*x-9)-(179)=0

Pull out like factors  6x - 9  =   3 • (2x - 3)

 (2x +  15 • (2x - 3)) -  179  = 0

Pull out like factors: 32x - 224  =   32 • (x - 7)

Solve: x-7 = 0

Add  7  to both sides of the equation  = 7

2. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: -40-(6*x-5*(-4*x-18))=0

Pull out like factors: -4x - 18  =   -2 • (2x + 9)

 -40 -  (6x -  -10 • (2x + 9))  = 0

Pull out like factors:  -26x - 130  =   -26 • (x + 5)

-26 • (x + 5)  = 0

Solve: x+5 = 0

Subtract  5  from both sides of the equation: x = -5

Hope this helps! Please mark as brainliest.

Thanks!

5 0
2 years ago
Use the elimination method to solve the system of equations. Choose the correct ordered pair.
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You answer is A. You have to substitute the values of x and y into the equation.

(3*1)= 4-1
 
4-(2*1)=2

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3 years ago
The table represents some points on the graph of a linear function.
labwork [276]

Answer:

Step-by-step explanation:

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Let a= x2 +4 rewrite the following equation in terms of a and set it equal to zero. (X2 + 4)2 + 32 = 12x2 + 48 in the resulting
Alex73 [517]
Answer: \\ {( {x}^{2} + 4) }^{2} + 32 = 12 {x}^{2} + 48 \\ \Leftrightarrow {a}^{2} + 32 = 12( {x}^{2} + 4) \\ \Leftrightarrow {a}^{2} + 32 = 12a \\ \Leftrightarrow {a}^{2} - 12a + 32 = 0 \\ \Rightarrow Coefficients:1, \: -12. \: Constant:a
5 0
3 years ago
29.24/0.153 is what?
PolarNik [594]

Answer:

191.111111111

Step-by-step explanation:

29.24 / 0.153 =191.111111111

8 0
3 years ago
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