Question

Solve the equation −7(−3n+3)=−21+21n

Equations and inequalities
ANSWERED
asked 2021-05-11
Solve the equation −7(−3n+3)=−21+21n

Answers (1)

2021-05-12
We have to find values of n such that -7(-3n+3)=-21+21n
From the given equation we have \(\displaystyle-{7}{\left(-{3}{n}+{3}\right)}=-{21}+{21}{n}\to{21}{n}-{21}=-{21}+{21}{n}\to{21}{n}={21}{n}\)
This shows that the given equation is true for all n.
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