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Solve the equation 4x + 5y = 9 for x.
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1 vote
Solve the equation 4x + 5y = 9 for x.

User Matuku
by
7.6k points

2 Answers

5 votes

Answer: x = 9/4 - 5y/4

Step-by-step explanation: Move all terms that don't contain x to the right side and solve.

User IqqmuT
by
7.8k points
2 votes

Answer:

x = -5y+9/4

Explanation:

4x + 5y = 9

↓

(4x + 5y) + (-5y) = 9 + (-5y)

↓

4x + 5y - 5y = 9 - 5y

↓

4x = -5y + 9

↓

4x/4 = -5y + 9/4

↓

x = -5y + 9/4

User Mat Colgrove
by
6.9k points
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