To solve for x, set up the equation:
2x +2x = 40 (then simplify)
4x = 40 (then divide both sides of the equation by 4)
x = 10 (this is the answer)
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Add the two equations you get 5y = 60 so y = 12 and x = 2
y=16 x= -4
2x+9 = 49-3x 2x+3x = 49-9 5x = 40 x = 8
A number "m" plus 40 equals 60. Therefore, 60 minus 40 equals m. m therefore equals 20.
The answer is: 23.2 plus 16.8 equals 40