The answer to the problem of 12X plus 13 equals 9 is x equals -1/3.
x + 3 + 4x = 13 3 +5x = 13 -- combine like terms 5x = 10 -- subtract 3 x = 2 --- divide by 5 "x" equals two
3+10 = 13
x=29
x=30...9+30=39 then divide by 3 equals 13.
5x - 4x = 13 - 3 ie x = 10
2x+3y=13 3x-y=3 x=2
x equals -3, and y equals 1.
x=-3
X= -8
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
4 x 3 + 1 = 13