Respuesta :
Answer:
x = 2.2
Step-by-step explanation:
-0.45x + 0.33 = -0.66
1) -0.45x + 0.33 = -0.66
- 0.33 -0.33
You have to get the variable on one side of the equation by itself, so you move over the 0.33.
* The 0.33 cancels out because of the positive and negative being combined.*
-0.45x = -.99
2) -0.45x = -0.99
Now you divide -0.45 by -0.99 to get the variable x by itself.
3) -0.45 divided by -0.99 is positive 2.2.
4) x = 2.2
The solution of the two-step linear equation in one variable, -0.45x + 0.33 = -0.66, is x = 2.2. Hence, 4th option is the right choice.
What are linear equations in one variable?
Linear equations in one variable are relations between two algebraic expressions, not involving more than one variable, and the degree of the equation, that is, the highest power of the variable is 1.
How to solve the question?
In the question, we are asked to solve the linear equation in one variable -0.45x + 0.33 = - 0.66, in two steps.
The two steps required to solve the given linear equation in one variable are as follows:
-0.45x + 0.33 = - 0.66
- Subtracting 0.33 from both the sides of the equation: -0.45x + 0.33 - 0.33 = -0.66 - 0.33, or, -0.45x = -0.99.
- Dividing both sides of the equation by -0.45: -0.45x/(-0.45) = -0.99/(-0.45), or, x = 2.2.
Thus, the solution of the two-step linear equation in one variable, -0.45x + 0.33 = -0.66, is x = 2.2. Hence, 4th option is the right choice.
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