Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$2-4 \times (-3)+5$$

Answer

19

Solution


Simplify  \(4\times (-3)\)  to  \(-12\).
\[2-(-12)+5\]
Remove parentheses.
\[2+12+5\]
Simplify  \(2+12\)  to  \(14\).
\[14+5\]
Simplify.
\[19\]
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