Question

plz help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Step-by-step explanation:

1) 5x/ 2 = 11-1= 10

→ x = 20/5= 4

2) 2x/7 = 2+3

→ 2x/ 7 = 5

→ x = 35/2

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Answer 2

Answer:

a) x = 4

b) x = 17.5

Step-by-step explanation:

$a) \: \frac{5x}{2} + 1 = 11 \\ = > \frac{5x + (1 \times 2)}{2} = 11 \\ = > \frac{5x + 2}{2} = 11 \\ = > 5x + 2 = 11 \times 2 \\ = > 5x + 2 = 22 \\ = > 5x = 22 - 2 \\ = > 5x = 20 \\ = > x = \frac{20}{5} \\ = > x = 4$

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$b) \: \frac{2x}{7} - 3 = 2 \\ = > \frac{2x - (3 \times 7)}{7} = 2 \\ = > \frac{2x - 21}{7} = 2 \\ = > 2x - 21 = 2 \times 7 \\ = > 2x - 21 = 14 \\ = > 2x = 14 + 21 \\ = > 2x = 35 \\ = > x = \frac{35}{2} \\ = > x = 17.5$

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