7.5
commutativity
X= (b-c)/a
15
It's simple, x+a = b is the expression
x=b-a
x = b/(a + c)
7.5
commutativity
Ax + B = Bx + C Ax - Bx = (C - B) x (A - B) = (C - B) x = (C - B) / (A - B)
X= (b-c)/a
x = ab x = 21*37 x = 777
15
x + y + z = 0 x = a - b, y = b - c, z = c - a, therefore a - b + b - c + c - a = ? a - a + b - b + c - c = 0
It's simple, x+a = b is the expression
Symmetry, which states that if A = B then B = A Put A = 4 and B = x + y
Yes.