-1 plus 1 = 0 plus 1 =1
a+a=1 2a=1 a=1/2
-2 plus 5 equals +3
x = 5, y = -1
y=5
It equals 2 over 8.
wel i cant explain how i did this but the answer is -1/7
To solve for 2 unknown variables you need 2 independent equations. You have only 1.
If: x+1+2x = 1x+5 Then: x = 2
no if 1 plus 1 equals 2 then 2 plus 2 equals 4.
5 plus 25 equals 60. Need to solve for 5 plus 25 equals ?: 2 plus 10 equals 24 is equivalent to 2 × (1 plus 5) equals 2 × (12); and 3 plus 15 equals 36 is equivalent to 3 ×(1 plus 5) equals 3 × (12); thus 5 plus 25 equals ? is equivalent to 5 × (1 plus 5) equals 5 × (12); thus ? = 5 × 12 = 60.
x+3y=2 x= -5 y = 1