Question

7 • (X - 6) =21 ?

por favor me ajudem

Answer 1

$7 \cdot (x-6)=21\\\\7x-42=21\\\\7x=21+42\\\\7x=63\\\\\\x= \dfrac{63}{7} \\\\\\x=9$


Forte abraço!

Answer 2

7 . (X - 6) = 21

7X - 42 = 21

7X = 21 + 42

7X = 63

X = 63
.......__
.........7

X = 9