Hong Kong

Stage 1 - Stage 3

Solve the following inequality: $21+7x\ge21$21+7`x`≥21

Easy

1min

Solve the following inequality: $3x+27>3$3`x`+27>3

Easy

1min

Solve the following inequality: $6x-54\ge30$6`x`−54≥30

Easy

< 1min

Solve the following inequality: $3n-9>9$3`n`−9>9

Easy

< 1min

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