Remove the numbers from the left side ... use the inverse operation ... inverse of -2 is + 2 ... 10c - 2 + 2
Do the same to both sides to keep the equation balanced
so add 2 to the right side ... 7c + 4 + 2
Remove the letters from the right side, use the inverse operation ...
inverse of 7c is - 7c ,,, 7c - 7c + 6
Do the same to both sides to keep the equation balanced
so subtract 7c from the left side ... 10c - 7c is 3c
We still have mixture of letters and numbers on the left ..... so
use the inverse operation again ... remember that 3c, really means 3 x c
The inverse of multiply is divide so divide by 3 ... 3 x c ÷ 3 is c
Do the same to both sides to keep the equation balanced
so divide 6 by 3 from the right side ... 6 ÷ 3 = 2 |