Whakaoti mō x
x=-\frac{21\pi }{4}-14\approx -30.493361431
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+7\times 3\pi =-56
Me whakarea ngā taha e rua o te whārite ki te 28, arā, te tauraro pātahi he tino iti rawa te kitea o 7,4.
4x+21\pi =-56
Whakareatia te 7 ki te 3, ka 21.
4x=-56-21\pi
Tangohia te 21\pi mai i ngā taha e rua.
4x=-21\pi -56
He hanga arowhānui tō te whārite.
\frac{4x}{4}=\frac{-21\pi -56}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{-21\pi -56}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=-\frac{21\pi }{4}-14
Whakawehe -56-21\pi ki te 4.
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