Solve and Check the Linear Equation

question 349

Multiple Choice

Solve and check the linear equation.
-0.40 ( 30 ) + 0.70 x = 0.60 ( 30 + x )

• A) { 50}
• B) { 30 }
• C) { 60 }
• D) { 70 }

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Definitions:

Dependent Variable

A variable in research that is expected to change as a result of manipulations in the independent variable, used to measure the effect of those manipulations.

Controlled Variable

A factor in an experiment that is purposefully kept constant to test the relative impact of an independent variable.

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