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\sqrt{5x}-3-\left(-3\right)=7-\left(-3\right)
Me tāpiri 3 ki ngā taha e rua o te whārite.
\sqrt{5x}=7-\left(-3\right)
Mā te tango i te -3 i a ia ake anō ka toe ko te 0.
\sqrt{5x}=10
Tango -3 mai i 7.
5x=100
Pūruatia ngā taha e rua o te whārite.
\frac{5x}{5}=\frac{100}{5}
Whakawehea ngā taha e rua ki te 5.
x=\frac{100}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
x=20
Whakawehe 100 ki te 5.