When x=4, 3x-2 = 3(4)-2 = 12-2 = 10
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y=1 and x=4 means that in an equation/sum, if y or x are written it means they represent those numbers. if y=1 and x=4, then 4y=4=x
find x3+y2 if x=4 and y=3 ( 4*4*4)+(3*3) 64 +9 =73
First sum the terms with x: 9x + (-3)x = 6 x. Then sum the terms without x: -11 + (-13)x = -24. Then 6x - 24 =0 or x = 24/6 = 4
0.75
The perimeter is the distance around, the sum of the sides. A 5 x 7 or a 4 x 8 rectangle has a perimeter of 24.