49 plus 10 equals 59.
36+8=44 49+42=91 Therefore,if both equations are not equivalent, then 36+8 doesn't equal 49+42
5x+49 = 8x+13 49-13 = 8x-5x 36 = 3x x = 12
49 plus 49
1 + 4 + 16 + 25 + 36 + 49 = 131
49 plus 7 equals 56.
4849494949505050------394
49 * 36
-x2+14x=49
49
49 + 72 + 68 = 189
49+18= 67