eg. x+2=3 y-7=(-4) 3a-2=a+2 b=4
model: 8 times a number plus 4 is 12. 8n+4=12
Identify the constant, variable, and numerical coefficient.

opposite operation:
addition, subtractionsubtraction, addition
multiplication, division
division, multiplication
Problem #1:

Problem #2:


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