In the equation 3x plus 7 equals 13, x is equal to 2.
-6
3 x 2 + x = -7 >> 6 + X = -7 >>> x = -13
If: 3x-7 = 5x+13 Then: x = -10
5x + 13
x=-7/13
no...no not quite, its 13, Here:3x2+7=x 3 times 2 equals 66+7=x 6 plus 7 equals 1313=x 13 equals xThere's yours answer, wasnt quite sure if it was a serious question or not but there ya go.
x=-3
X=10.
yes.
the answer -7+x=13 add 7 to both sides. cancel the first set of sevens leavening you with the x and add 13+7=20
3x + 7 = 5x + 13 3x - 5x = 13 - 7 -2x = 6 -x = 3 x = -3