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vitfil [10]
2 years ago
10

Solve each equation

Mathematics
2 answers:
Fed [463]2 years ago
7 0

Answer:

1. y = 7

2.  y = 6

3.  y = 7/2

4. y = 8

Step-by-step explanation:

I searched it up and found the answer.

Alona [7]2 years ago
6 0
<h3><u>Solution</u><u>:</u></h3>

<em>Let's </em><em>solve </em><em>each </em><em>equation </em><em>one</em><em> </em><em>by </em><em>one </em><em>:</em>

  • <u>7y + 7 = 56</u>

➝ 7y + 7 = 56

➝ 7y = 56 - 7

➝ 7y = 49

➝ y = 49 / 7

➝ y = 7

  • <u>4</u><u>2</u><u> </u><u>-</u><u> </u><u>6</u><u>y </u><u>=</u><u> </u><u>6</u>

➝ 42 - 6y = 6

➝ - 6y = 6 - 42

➝ - 6y = - 36

➝ y = -36 / - 6

➝ y = 6

  • <u>(</u><u> </u><u>y </u><u>+</u><u> </u><u>1</u><u> </u><u>)</u><u>²</u><u> </u><u>=</u><u> </u><u>9</u>

➝ ( y + 1 )² = 9

➝ y + 1 = √ 9

➝ y + 1 = 3

➝ y = 3 - 1

➝ y = 2

  • <u>1</u><u> </u><u>+</u><u> </u><u>7</u><u>2</u><u> </u><u>/</u><u> </u><u>y </u><u>=</u><u> </u><u>1</u><u>0</u>

➝ 1 + 72 / y = 10

➝ 72 / y = 10 - 1

➝ 72 / y = 9

➝ 72 = 9y

➝ 9y = 72

➝ y = 72 / 9

➝ y = 8

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