exam Maths Puzzle Numerical Ability

4(x-1)+2=3x+8-2x

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I really need help with this problem. The problem says to find two consecutive intergers whose product is 90, it must be solved algebraically. Thank You. A merchant blends tea that sells for $3.00 a pound with tea that sells for $2.75 a pound to produce 80 lb of a mixture that sells for $2.90 a pound. How many pounds of each type of