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valina [46]
3 years ago
7

Given that 5x - 8y = 33 find x when y = 1

Mathematics
1 answer:
fenix001 [56]3 years ago
7 0

Answer:

<h3><u>x = ⁴¹⁄₅ or 8.2</u></h3>

Explanation:

5x - 8y = 33

y = 1

<em>Insert 1 for 'y' in the equation</em>

5x - 8(1) = 33

<em>Remove parenthesis: (a) = a</em>

5x - 8 · 1 = 33

<em>Multiply 8 · 1: 8</em>

5x - 8 = 33

<em>Add 8 to both sides</em>

5x - 8 + 8 = 33 + 8

Simplify

5x = 41

<em>Divide both sides by 5</em>

5x / 5 = 41 / 5

x = ⁴¹⁄₅

<em>Turn the fraction into a decimal</em>

x = 8.2

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