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SSSSS [86.1K]
3 years ago
10

WHICH equation has the same solution as4-2(x-5)=x-19

Mathematics
1 answer:
Elodia [21]3 years ago
5 0

Solution of equation 4-2(x-5)=x-19 is given below .

Step-by-step explanation:

4-2(x-5)=x-19  

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    4-2*(x-5)-(x-19)=0  

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (4 -  2 • (x - 5)) -  (x - 19)  = 0  

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

 33 - 3x  =   -3 • (x - 11)  

Equation at the end of step  3  :

 -3 • (x - 11)  = 0  

Step  4  :

Equations which are never true :

4.1      Solve :    -3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

4.2      Solve  :    x-11 = 0  

Add  11  to both sides of the equation :  

                     x = 11

One solution was found :

                  x = 11

Processing ends successfully

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X + y =125<br> 5x + 8y = 775
muminat

Answer:

x=75, y = 50

Step-by-step explanation:

Solve the following system:

{x + y = 125 | (equation 1)

5 x + 8 y = 775 | (equation 2)

Swap equation 1 with equation 2:

{5 x + 8 y = 775 | (equation 1)

x + y = 125 | (equation 2)

Subtract 1/5 × (equation 1) from equation 2:

{5 x + 8 y = 775 | (equation 1)

0 x - (3 y)/5 = -30 | (equation 2)

Multiply equation 2 by -5/3:

{5 x + 8 y = 775 | (equation 1)

0 x+y = 50 | (equation 2)

Subtract 8 × (equation 2) from equation 1:

{5 x+0 y = 375 | (equation 1)

0 x+y = 50 | (equation 2)

Divide equation 1 by 5:

{x+0 y = 75 | (equation 1)

0 x+y = 50 | (equation 2)

Collect results:

Answer:  {x = 75 , y = 50

8 0
3 years ago
Read 2 more answers
Solve for n -4.2n-1.7=2.08
vovikov84 [41]

Answer:

n= -0.9

Step-by-step explanation:

-4.2n-1.7=2.08 ( move the constant to the right)

-4.2n = 2.08 + 1.7( calculate)

n = -0.9

4 0
3 years ago
What is the slope of line segment AB? Keep as a reduced fraction.<br> B<br> A
ladessa [460]

Answer:

2

Step-by-step explanation:

Use rise over run (y2 - y1) / (x2 - x1) where (x1, x2) and (y1, y2) are points on the line

Plug in the points A (-3, -2) and B (1, 6)

(y2 - y1) / (x2 - x1)

(6 + 2) / (1 + 3)

8 / 4

= 2

So, the slope of line segment AB is 2.

4 0
4 years ago
BRAINLIEST!!<br> Please at least take a look
Bad White [126]

Answer:

The answer to your question is below

Step-by-step explanation:

1) The triangles are similar by the AA postulate so use proportions to find x.

          x/207 = 170/90

solve for x

          x = 207(170/90)

          x = 207(1.89)

         x = 391 ft

2) These triangles are similar so use proportions to solve it

          x/138 = (x + 60)/207

         207x = 138(x + 60)

         207x = 138x + 8280

          207x - 138x = 8280

                      69x = 8280

                         x = 8280/69

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