Question

Ecuaciones ayúdenme please
A-3=12
4+8=18
B-4.3=3
A-1.6=3
4+3.1=5.1

Answer 1

A - 3 = 12
A = 12 + 3
A = 15

A + 8 = 18
A = 18 - 8
A = 10

B - 4.3 = 3
B = 3 + 4.3
B = 7.3

A - 1.6 = 3
A = 3 + 1.6
A = 4.6

A + 3.1 = 5.1
A = 5.1 - 3.1
A = 2