Question

please help me I will mark you as the brainliest please ​

Answer 1

Heya here is the answer...

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Answer 2

Answer :

1) y + 7 = 22.

=> y = 22 -7

=> y = 15

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2) 3a + 7 = 22

=> 3a = 22 - 7

=> 3a = 15

=> a = 15/3

=> a = 5

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3) x/4 = 20

=> x = 20×4

=> x = 80

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

4) 4.5a = 18

=> a = 18/4.5

=> a = 4

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5) 4x - 10 =2

=> 4x = 2+10

=> 4x = 12

=> x = 12/4

=> x = 3

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6) x / 6 + 5 = 8

=> x/6 = 8 - 5

=> x / 6 = 3

=> x = 3×6

=> x = 18

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7) 2x -12 = 2

=> 2x = 2+12

=> 2x = 14

=> x = 14/2

=> x = 7

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8) 4(3x-5) = 28

=> 12x - 20 = 28

=> 12x = 28+20

=> 12x = 48

=> x = 48/12

=> x = 4

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9) 7y - 9 = 5y + 1

=> 7y - 5y = 1 + 9

=> 2y = 10

=> y = 10/2

=> y = 5

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10)

$\frac{3}{5} x + \frac{1}{2} = x + 1\frac{1}{2} \\ = > \frac{3}{5} x + \frac{1}{2} = x + \frac{3}{2} \\ = > \frac{3}{5} x - x = \frac{3}{2} - \frac{1}{2} \\ = > \frac{3x - 5x}{5} = \frac{3 - 1}{2} \\ = > \frac{ - 2x}{5} = \frac{2}{2} \\ = > \frac{ - 2x}{5} = 1 \\ = > - 2x = 1 \times 5\\ = > - 2x = 5 \\ = > x = - \frac{5}{2}$

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