please help

Question

PC Solutions sells regular keyboards for $84 and wireless keyboards for $105. Last week the store sold three times as many regular keyboards as wireless. If total keyboard sales were $4,998, how many of each type were sold

Answer 1

I have two equations knowing that x= regular keyboards and Y = wireless

84X + 105Y = 4998

X = 3Y

252Y + 105Y = 4998

357Y = 4998

Y = 14 wireless sold

x= 14X3= 42 regular sold.

 

Answer 2

reg sold for 84 wireles sold for 105

Let x be the number of wireless keyboards

so 105*X+84 * # *X = 4998

 

solve for X  X=14 wireles keyboards

3*14= 42 is the number of reg Keyboards