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
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Oh, dude, that's like basic math. 60 plus 40 equals 100. It's like, not rocket science or anything. So yeah, there you go, easy peasy lemon squeezy.
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
24 is 60% of 40