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# Evaluate variable expressions with rational numbers

Evaluate the expression 2+h for h = 0.5

Plug in h=0.5 and simplify

 2+h 2+0.5 Plug in h=0.5 2.5 Add

Evaluate the expression -2-3m for m=-1.4

Plug in m=-1.4 and simplify

 -2-3m -2-3(-1.4) Plug in m=-1.4 -2+4.2 Multiply 2.2 Subtract

Evaluate the expression t+|s| for and t=8.

Evaluate the expression -8v for v=8.1
Solution: -8v=