bonjour;
A=
-12/75 -1/3
= -12/75 -( 1/3*25/25)
= -1275 -25/75
= -37/75
B=
-3/5 *( 1*2/2-7/2)
= -3/5 * (2/2-7/2)
= -3/5 * -5/2
= 15/10
=3/2
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bonjour;
A=
-12/75 -1/3
= -12/75 -( 1/3*25/25)
= -1275 -25/75
= -37/75
B=
-3/5 *( 1*2/2-7/2)
= -3/5 * (2/2-7/2)
= -3/5 * -5/2
= 15/10
=3/2