Question

7x+5x-7=21+10x

Answer 1

Answer:

Because there is one solution for this equation, it means it is neither.

Step-by-step explanation:

7x+5x-7=21+10x

12x-7 = 10x +21

2x = 28

 x = 14

It has one solution, which is 14.

Because there is one solution for this equation, it means it is neither.

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Answer 2

Answer:

One Solution

Step-by-step explanation:

Step 1:

7x + 5x - 7 = 21 + 10x  Equation

Step 2:

12x - 7 = 21 + 10x   Add

Step 3:

2x - 7 = 21   Subtract 10x on both sides

Step 4:

2x = 28   Add 7 on boths sides

Step 5:

28 ÷ 4    Divide

Answer:

x = 7

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