Solving Expressions Using Substitution TOTD

Evaluate the expression if a = 8, b = 2, c = 4, and d = 3.

2a - 3b

Evaluate the expression if a = 8, b = 2, c = 4, and d = 3.

 $8c\ \cdot\ 3$  

Evaluate the expression if c = 1.9

 $4^3\ +\ 5c$  

Evaluate the expression if n = 5

 $3\left(n-1\right)+2n$  

Evaluate the expression if r = 12 and t = 3

 $\frac{2r}{t}+7$