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You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.
Without an equality sign the given expression is not an equation and so therefore finding the value of x is not possible.
You don't "solve" an expression. You can solve an equation; an expression can be simplified or otherwise manipulated, and if you know the value of "x" (in this case), you can evaluate its value.
+1/0 or -1/0 or 0/0
14
a≠ 0,LCD = a33/a + 2/a2 - 1/a3= (3/a)(a2/a2) + (2/a2)(a/a) - 1/a3= 3a2/a3 + 2a/a3- 1/a3= (3a2 + 2a -1)/a3
To simplify the expression (2a(b + 1)), you can distribute (2a) to both terms inside the parentheses. This gives you (2ab + 2a). Therefore, the simplified expression is (2ab + 2a).
3b -1
To simplify the expression 2a - 3 + 4b - 2a - b - 3 + 5, we first combine like terms. Combining the terms with 'a', we have 2a - 2a = 0. Combining the terms with 'b', we have 4b - b = 3b. Combining the constants, we have -3 - 3 + 5 = -1. Therefore, the simplified expression is 3b - 1.
In mathematical terms, "2a 2a" typically implies the expression ( 2a \times 2a ), which can be simplified to ( 4a^2 ). This is derived from multiplying the coefficients (2 and 2) and adding the exponents of ( a ) (1 + 1). Therefore, the final result is ( 4a^2 ).
To simplify the expression (2a + a), you can combine like terms. Since both terms involve the variable (a), you can add their coefficients: (2 + 1 = 3). Thus, the simplified expression is (3a).
1
They are 4 terms of an algebraic expression which does not have an equality sign in it.
As stated it is just an algebraic expression. However, if we equate it to zero then it can be solved. 2a2 + 5a + 2 = 0 This can be factored (2a + 1)(a + 2) = 0 This means that (2a + 1) = 0 or (a + 2) = 0 Then either 2a = -1 : a = -1/2 or a = -2
It means that it is an expression, and it contains one or more variables. An "expression" is anything that can be calculated to obtain a number. For example, all of the following are expressions: 5 1 + 2 a a + 1 2a a + b
32a + 8= 8(4a+1)
The multiplicative inverse of -2a is 1/(-2a) = -1/2a