Example

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

Question

$$-3a\cdot5-4d\cdot2=$$

Answer

-15*a-8*d

Solution


Simplify  \(-3a\times 5\)  to  \(-15a\).
\[-15a-4d\times 2\]
Simplify  \(4d\times 2\)  to  \(8d\).
\[-15a-8d\]
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