Complete this fill-in-the-blank problem. (4 points)
When you evaluate an expression, you substitute a number in for a
. For example, to evaluate the expression 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, in this expression, (6k+5)+(3k-7). You would add together the coefficients (numbers) in front of "k" and add together the constants or 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 constants, 5 + -7 which would equal
.
1 answer
-11.