Complete this fill in blank problem- when you evaluate an expression, you substitute a number in for a————. Four example, to evaluate 4y -+3 for y=6, you would substitute 6 for y. You would then solve using the order of operations. So 4(6)+3 = ——-. You can also simplify algebraic expressions without knowing what the variables equal, for example and this expression, (6k+5)+ (3k-7). You would add to gather the coefficiency numbers in front of Kaye and add together the Constance our numbers. Adding or subtracting the same variables together is called combining.———-. So you would combine.6k+3k which would equal 9k and you would combine the contestants , 5+-7 which would equal——.
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Complete this fill in the blank problem- when you evaluate an expression, you substitute a number in for a variable. For example, to evaluate 4y - 3 for y = 6, you would substitute 6 for y. You would then solve using the order of operations. So 4(6) - 3 = 24 - 3 = 21.
You can also simplify algebraic expressions without knowing what the variables equal. For example, in this expression, (6k + 5) + (3k - 7), you would add together the coefficients (numbers in front of the variables) for the variable k and add together the constants (numbers without variables). Adding or subtracting the same variables together is called combining like terms.
So you would combine 6k + 3k, which would equal 9k, and combine the constants, 5 + (-7), which would equal -2.