40 + 60 = 60 + x
Addition has a property called the Commutative property which says that:
x + y = y + x.
So, over here:
x = 40
y = 60
Thus,
40 + 60 = 60 + 40
40
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
The result of the equation - 130 plus 80 plus 60 plus 40, is found as follows;130 + 80 + 60 + 40= ( 130 + 80 ) + 60 + 40= 210 + ( 60 + 40 )= 210 + 100= 310Answer = 310
2a + 2b = 160 But b = a + 40 so 2a + 2(a + 40) = 160 ie 2a + 2a + 80 = 160 or 4a = 80 ie a = 20 Then b = a + 40 gives b = 20 + 40 = 60 Solution: a = 20, b = 60
There are an infinite number of solutions, like 45 + 45 or 60 + 30
40 +60=100
A number "m" plus 40 equals 60. Therefore, 60 minus 40 equals m. m therefore equals 20.
275
-3.32
60 + 40: lx + xl = c 5 - 40: v - xl = -xxxv
300 !
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
The result of the equation - 130 plus 80 plus 60 plus 40, is found as follows;130 + 80 + 60 + 40= ( 130 + 80 ) + 60 + 40= 210 + ( 60 + 40 )= 210 + 100= 310Answer = 310
2a + 2b = 160 But b = a + 40 so 2a + 2(a + 40) = 160 ie 2a + 2a + 80 = 160 or 4a = 80 ie a = 20 Then b = a + 40 gives b = 20 + 40 = 60 Solution: a = 20, b = 60
Add the two equations you get 5y = 60 so y = 12 and x = 2
The result of the equation - 130 plus 40 plus 60 plus 80, is found as follows;130 + 40 + 60 + 80= ( 130 + 40 ) + 60 + 80= 170 + ( 60 + 80 )= 170 + 140= 310Answer = 310
There are an infinite number of solutions, like 45 + 45 or 60 + 30
40 +60=100