Example

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

Question

$$A-B=4; -B-C=24; C-D=4$$

Solve for A, B, C, D

$A=-D-24$
$B=-D-28$
$C=D+4$

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