value of expressions x= -1
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Step-by-step explanation:
When we substitute a specific value for each variable, and then perform the operations, it's called evaluating the expression. Let's evaluate the expression 3y + 2y when 5 = y.
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In an algebraic expression, letters can stand for variables. When we substitute a specific value for each variable, and then perform the substitution, it's called evaluating the expression.
Let's evaluate the expression 3x + 4x when x= -1
3x+4x
3(-1)+4(-1)
-3+(-4)
-3-4
-7
Hope it helps you...
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