Practice problem
If (7⋅2)⋅(10⋅x)=(10⋅2)⋅(7⋅3)\left(7\cdot2\right)\cdot\left(10\cdot x\right)=\left(10\cdot2\right)\cdot\left(7\cdot3\right)(7⋅2)⋅(10⋅x)=(10⋅2)⋅(7⋅3), what could xxx be?
333
222
666
888
Type a concept, like “slope” or “photosynthesis”.