66.7k views
2 votes
How to solve -7=5x-2. 2 step equations using inverse operations

2 Answers

2 votes
-7=5(-1)-2
-7=-5-2
-7=-7
User NicolasW
by
7.7k points
3 votes

Answer:

-1

Explanation:

Add 2 to both sides of the equation: -7 + 2 = 5x - 2 + 2. This gives you -5 = 5x.

Divide both sides of the equation by 5: -5/5 = 5x/5. This gives you -1 = x.

So the solution to the equation is x = -1.

Alternatively, you can also use inverse operations to solve the equation by isolating x to one side.

Add 2 to both sides of the equation: -7 + 2 = 5x - 2 + 2. This gives you -5 = 5x

Divide both sides of the equation by 5: -5/5 = 5x/5. This gives you -1 = x

So the solution to the equation is x = -1.

User WhiteHorse
by
7.3k points