2x + 5x = 35
It is a linear equation in x so, it as only one value of x.
2x + 5x = 35
taking common x on the left side
(2 + 5 )x = 35
7x = 35
dividing by 7 on both sides, we get
7x/7 = 35/ 7
X= 5
????RIGHT????
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-2x+14=20 x=-3
4x + 2 + 2x - 2x = 14 4x = 14 - 2 4x = 12 x = 3
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)
A Letter.14-2x=3x+113-2x=3x3=5xX=0.6
14x - 14 = 2x + 46 14x - 2x = 46 + 14 12x = 60 x = 5