Question

5a2b3 + * = 13a2b3
-12x3 - * = - 24x3
-18a5b7 - * = 0
0 - * = 2,4x3yz

Answer 1

5a2b3 + 8а= 13a2b3
-12x3 - 12х3= - 24x3
-18a5b7 - (-18а5b7) = 0
0 - (-2,4x3yz) = 2,4x3yz