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jek_recluse [69]
3 years ago
8

Help me! Sorry for the other question.... let’s try it again! 1/2 x + 3/5 x = 5/4

Mathematics
2 answers:
Ann [662]3 years ago
8 0

Answer:

x = 1 3/22

Step-by-step explanation:

1/2 x + 3/5 x = 5/4

We need to get rid of the fractions by multiplying by 20 on each side

20 (1/2 x + 3/5 x) = 20 * 5/4

Distribute

10x + 12x = 25

Combine like terms

22x = 25

Divide each side by 22

22x/22 = 25/22

x = 22/22 + 3/22

x = 1 3/22

Volgvan3 years ago
4 0

Answer:

x = 1\frac{3}{22}

Step-by-step explanation:

=> \frac{1}{2} x + \frac{3}{5} x = \frac{5}{4}

LCM = 20

So, Multiplying both sides by 20

=> 20 (\frac{x}{2} + \frac{3x}{5}) = 5 * 5

10 * x + 4*3x = 25\\10x+12x = 25\\22x = 25

Dividing both sides by 22

x = \frac{25}{22}

x = 1\frac{3}{22}

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Step-by-step explanation:

see attached for reference

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