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kow [346]
2 years ago
6

4 (3x - 4) = -(-2x + 21) solve for x

Mathematics
2 answers:
Bogdan [553]2 years ago
7 0

Step-by-step explanation:

12x - 16 = 2x - 21

10x - 16 = -21

10x = -5

x= -0.5

qwelly [4]2 years ago
4 0

Answer:

4(3x - 4)=-(-2x+21)

12x - 16 = 2x - 21

12x - 2x =  - 21 + 16

10x =  - 5

x =  \frac{ - 5}{10}

x = -  0.5

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Step-by-step explanation:

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Answer:

Ella should add 32\dfrac{5}{6} lbs of water.

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Step-by-step explanation:

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Weight of sugar = 0.5 lbs.

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Total weight = 0.5 + x lbs

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0.5  --  1.5%

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1.5(0.5+x)=0.5\cdot 100\\ \\0.75+1.5x=50\\ \\1.5x=50-0.75\\ \\1.5x=49.25\\ \\x=\dfrac{49.25}{1.5}=\dfrac{4,925}{150}=\dfrac{197}{6}=32 \dfrac{5}{6}\ lbs

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32\dfrac{5}{6}+\dfrac{1}{2}=32\dfrac{5}{6}+\dfrac{3}{6}=33\dfrac{1}{3}\ lbs

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Step-by-step explanation:

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