10 + (-5) = 10 - 5 = 5
-11 + 20 = 20 + (-11) = 20 - 11 = 9
102 + (-1) = 102 - 1 = 101
<span>-20 + 60 = 60 + (-20) = 60 - 20 = 40 </span>
Answer:
A is 24
Step-by-step explanation:
60:100 is equivalent to 24:40
Answer:
The algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.
Step-by-step explanation:
Different ways to present algebraic expressions without changing their meaning:
1. We can describe the algebraic expressions in words so that its meaning remains same.
For example : 3x+y = Sum of 3 times of an unknown variables x and y.
2. We can describe the algebraic expressions in equivalent expressions, so that its meaning remains same.
For example : 6x+3y = 3(2x+y)
Therefore, the algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.
