3 years ago

What is the solution of 1-3x= x + 3 ?

2 answers:

6 0

1 - 3x = x + 3    |subtract 1 from both sides

-3x = x + 2     |subtract x from both sides

-4x = 2    |divide both sides by (-4)

x = 2/-4

x = -0.5

Scorpion4ik [409]3 years ago

3 0

1 -3x = x + 3
-1 -1

-3x = x + 2
-x -x

-4x = 2
/-4 /-4

x = $\frac{-1}{2}$

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Snowcat [4.5K]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Layla emptied out her change jar to buy a new binder for school. She found 147 coins consisting of dimes and nickels that totale

den301095 [7]

Answer:

d + n = 147

0.10d + 0.05n = 11.65

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Step-by-step explanation:

Let

Number of dimes = d

Number of nickels = n

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d + n = 147 (1)

0.10d + 0.05n = 11.65 (2)

From (1)

d = 147 - n

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0.10d + 0.05n = 11.65

0.10(147 - n) + 0.05n = 11.65

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n = -3.05 / -0.05

= 61

n = 61

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d + n = 147

d + 61 = 147

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3 years ago

Pls help! Solve the equation by using quadratic formula. <br><br> -2x’2 + 4x = 5

OleMash [197]

Answer:

$x=\frac{2\pm i\sqrt{6}}{2}$

Step-by-step explanation:

$-2x^2+4x=5\\\\-2x^2+4x-5=0\\\\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-4\pm\sqrt{(4)^2-4(-2)(-5)}}{2(-2)}\\\\x=\frac{-4\pm\sqrt{16-40}}{-4}\\\\x=\frac{-4\pm\sqrt{-24}}{-4}\\ \\x=\frac{-4\pm2i\sqrt{6}}{-4}\\ \\x=\frac{2\pm i\sqrt{6}}{2}$