## Introductory Algebra for College Students (7th Edition)

Substitute -3$\frac{1}{2}$ into the equation for the variable and then simplify to see if the equation is true or false. 16-4x=-2x+21 16-4(-3$\frac{1}{2}$)=-2(-3$\frac{1}{2}$)+21 16+14=7+21 30$\ne$28 This is not a solution.
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