Equations

Hong Kong

Stage 4 - Stage 5

How many solutions does the equation $18+3x=3x-16$18+3`x`=3`x`−16 have?

No solutions

A

One solution

B

Infinitely many

C

Easy

Less than a minute

How many solutions does $10+3x=3x+2\times5$10+3`x`=3`x`+2×5 have?

How many solutions does the equation $8x-4x=4$8`x`−4`x`=4 have?

How many solutions does the equation $x+8=x+6$`x`+8=`x`+6 have?

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