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Len [333]
3 years ago
12

Can someone please help 4x + 2x + 1 = 2x - x + 21

Mathematics
1 answer:
erica [24]3 years ago
3 0

Answer: Rearrange:

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

4*x+2*x+1-(2*x-x+21)=0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1 Pull out like factors :

5x - 20 = 5 • (x - 4)

Equation at the end of step

1

:

STEP

2

:

Equations which are never true:

2.1 Solve : 5 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2 Solve : x-4 = 0

Add 4 to both sides of the equation :

x = 4

One solution was found :

x = 4

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5x + 20 = 90 - a = 90 - (3x + 40)
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4 0
3 years ago
Help me plzzzzzzzzz<br> solve for x
Svet_ta [14]

Answer:

7) \frac{x+20}{x}=\frac{46}{30}

30(x+20)=46x

30x+600=46x

46x-30x=600

16x=600

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x=37.5

---------------------

8) \frac{10}{3x+1} =\frac{22}{7x-1}

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70x-10=66x+22

70x-66x=22+10

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x=8

<u>---------------------</u>

hope it helps...

have a great day!!

4 0
3 years ago
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