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5(y+1)-2y5 x y = 5y5 x 1 = 55y + 5 - 2y5y - 2y = 3y3y + 5
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(x/4)-9=5
3x -5(1/x) =14 *multiply everything by x 3x2-5= 14x *move 14x over 3x2-14x-5 *Factor (3x+1)(x-5) *Solve by setting brackets to 0 3x+1 = 0 x=-1/3 x-5=0 x=5 CHECK BY PLUGGING INTO EQUATION 3(-1/3)- 5(1/-1/3) = 14 -1+ 15 = 14 3(5)-5(1/5)=14 15-1 =14 Therefore the number can be -1/3 or 5
Written mathematically, the question is 1/4 x 1/2 x 1/5 x 200 = ? The answer is 200/40, or 5.