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X - - 3 = 10

What is the value of x?

User Fyodor
by
7.6k points

2 Answers

1 vote

Answer:

x=7

Explanation:

First, you start with keep, change, change. Keep the x, change the minus to a plus, and then make the negative 3 into three.

So you should have X+3=10

Take the 10 and minus 3

Then you have 7

So your answer will be X=7

User Tbondwilkinson
by
9.0k points
2 votes

Answer:

x = 7

Explanation:

Rule: an even number of - signs written one after another produces a plus number.

So - - 3 = 3

The rule also lets you do something strange like

- - - - 4 = 4 but you hardly ever see this.

Rule: an odd number of minus signs produces a minus number.

x + 3 = 10 Subtract 3 from both sides.

x + 3 - 3 = 10 - 3

x = 7

User Niklas
by
7.9k points

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