(3) (a) Fatoumata had 20 toy cars. She lost x toy cars lately. Write an algebra expression that indicates how many toy cars Fatoumata has now (b) Write an algebraic expression for the following. "Betty has m marbles. Annie has 5 more than 3 times the number of marbles Betty has".

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A: 2x312-30x8=02x-94xx8=02x2-9x+32x=02x2+23x=0⇒2x2+23x=0x(2x+23)=0⇒x=0 or 2x+23=0⇒x=0 or x=-232

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A: answer is in next step

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A:

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A:

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A:

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A: Solution:

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A: I am attaching image so that you understand each and every step.

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A: Given

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A: