1.6[7-4m]=30 2.[5+6a]-3=8
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1/2x + 5 = 35
You use 1/2 because she sold half of her books . Then +5 because she gained 5 back and 35 because your end total should be 35.
Hope this helps ! :)
You use 1/2 because she sold half of her books . Then +5 because she gained 5 back and 35 because your end total should be 35.
Hope this helps ! :)