Example

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

Question

$$1.2+1.2(4.6-2.4)+3.8$$

Answer

7.64

Solution


Simplify  \(4.6-2.4\)  to  \(2.2\).
\[1.2+1.2\times 2.2+3.8\]
Simplify  \(1.2\times 2.2\)  to  \(2.64\).
\[1.2+2.64+3.8\]
Simplify  \(1.2+2.64\)  to  \(3.84\).
\[3.84+3.8\]
Simplify.
\[7.64\]
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