Question

resolva as equações:
2x-3 =1
3a-1=2
2p+3=4

Answer 1

2x-3=1         3a-1=2         2p+3=4
2x=1+3        3a=2+1        2p=4-3
2x=4           3a = 3          2p = 1
x=4 / 2        a = 3 / 3       p = 1/2 ou 0.5
x=2            a = 1

Answer 2

2x-3=1
2x=4
x=4/2
x=2
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3a-1=2
3a=3
a=3/3
a=1
----------------------------
2p+3=4
2p=1
p=1/2
p=0,5