EM-190

Changing the subject of a formula

E Math · Secondary 3 · Medium · Changing the subject of a formula

1. $x = \dfrac{y + 7}{3}$
2. $x = 3y - 7$
3. $x = \dfrac{y - 7}{3}$
4. $x = \dfrac{7 - y}{3}$

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