carolinegigi 03/09/2022 Explicação passo-a-passo:x/2/5=21/7/107/10x=21.2/57x=10.21.2/57x=2.21.2x=4.21/7x=4.3x=12
carolinegigi
Explicação passo-a-passo:
x/2/5=21/7/10
7/10x=21.2/5
7x=10.21.2/5
7x=2.21.2
x=4.21/7
x=4.3
x=12