Multiply or divide both sides by -1.
-b = 12.5
b = -12.5
b = 14
12 = -4/2 * -2 + b 12 = -2 * -2 + b 12 = 4 + b 8 = b
8 1/3 = ab^-1, 1.8 =ab^2
Not enough information to solve
Negative times negative equals positve, so -a*-b=ab (positive ab)
b = 14
By utilising the fact that subtraction is the reverse operation to addition. Thus, if A + B = C then C - B = A In this particular case, since 125 + 150 = 275 then 275 - 150 = 125
12 = -4/2 * -2 + b 12 = -2 * -2 + b 12 = 4 + b 8 = b
12 = -4/7 * -2 + b 12 = 8/7 + b 10 6/7 = b
8 1/3 = ab^-1, 1.8 =ab^2
b = y - mx.
b=Ah
Not enough information to solve
root 7
x=b-a
c equals b over 8
If: a = b+c+d Then: c = a-b-d