basically you asked what -28+21 which equals -7
yes it is
13 + 42 = 55
X +13 equals 22, X equals nine
13 13+16=29
5
273 13+8 = 21 and 13*21 = 273
The answer to the problem of 13 equals -4x plus 9 is x equals -1.
basically you asked what -28+21 which equals -7
yes it is
5
The answer to the problem of 12X plus 13 equals 9 is x equals -1/3.
The answer to 1 over 2x plus 13 equals 9 is x equals -8.
13
13
17 plus 15 plus 13 equals 45.
13