3.6 + x = 4.9 . . . . . . . . . . . . . . . . Original equation
3.6 - 3.6 + x = 4.9 - 3.6 . . . . . . . . . . . . Subtract 3.6 from each side
x = (4.9 - 3.6) . . . . . . . . . . . x is now isolated on one side
x = 1.3 . . . . . . . . . . . . . . . . Do basic subtraction; x is solved.
5x+49 = 8x+13 49-13 = 8x-5x 36 = 3x x = 12
Let the number is x So, X+20=69 X=69-20 X=49 THE NUMBER IS 49 SO, 49 plus 20 equal to 69 .•.
49 plus 56 plus 112 equals 217.
1 + 4 + 16 + 25 + 36 + 49 = 131
71 plus 23 plus 49 is equal to 143.
36+8=44 49+42=91 Therefore,if both equations are not equivalent, then 36+8 doesn't equal 49+42
96
455
5x+49 = 8x+13 49-13 = 8x-5x 36 = 3x x = 12
Let the number is x So, X+20=69 X=69-20 X=49 THE NUMBER IS 49 SO, 49 plus 20 equal to 69 .•.
49 plus 56 plus 112 equals 217.
44
1 + 4 + 16 + 25 + 36 + 49 = 131
71 plus 23 plus 49 is equal to 143.
49 plus 10 equals 59.
49 plus 7 equals 56.
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