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
I.D
5y-6=19
variable - y
numerical coefficient - 5
constant - (-6)
OPPOSITE OPERATIONS
1. +,- 2. x, ./. 3.-,+ 4. ./.,x
HERE IS A LINK : http://classroom.jc-schools.net/basic/math-algebra.html