Say: centimetre=u
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3u*7u
=3*7*u*u
=3*7*u²
=21u²
=21cm²
I think it’s a reciprocal function
-2(x - 3) = 5(2x + 3)
-2x + 6 = 10x + 15
6 = 10x + 15 + 2
6 = 12x + 15
6 - 15 = 12x
-9 = 12x
-9/12 = x
-3/4 = x or in decimal form; -0.75
hope this helps, God bless!
Can you post the provable question
