Example

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

Question

$$42-2.(9-3)+3$$

Answer

42.4

Solution


Simplify  \(9-3\)  to  \(6\).
\[42-2.6+3\]
Simplify  \(42-2.6\)  to  \(39.4\).
\[39.4+3\]
Simplify.
\[42.4\]
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