Question

*Which of the following is not an equation in one variable ?*

1️⃣ 2x + 5=9
2️⃣ 3y=8
3️⃣ 3x + 4y =9
4️⃣ 6z/7=2
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Answer 1

Answer:

3️⃣ 3x + 4y =9

Step-by-step explanation:

Because 2 variables "x" and "y" are used in this equation

Answer 2

Answer:

3x + 4y=9 is the correct answer