1. Balanced scales and equations

2. Write an equation for this diagram12 -5
t - 5 = 12 +5 +5
Now solve the equation
t = 17

3. Write an equation for this diagram4 9
e + 9 = 4 -9 -9
Now solve the equation
e = -5

4. Write an equation for this diagramj j 5 -8
2j - 8 = 5 +8 +8
Now solve the equation
2j = 13 ÷2 ÷2
j =
6.5

5. Write an equation for this diagramb b b 6 11
2b + 6 = b + 11 -b -b
Now solve the equation
b + 6 = 11 -6 -6
b = 5

6. Write an equation for this diagramx x x x -7 3
3x – 7 = x + 3 -x -x
Now solve the equation
2x – 7 = 3 +7 +7
2x = 10
x = 5

7. Write an equation for this diagram+3 15
m + 3 = 15 – 2m
+2m
+2m
Now solve the equation
3m + 3 = 15 -3 -3
3m = 12
m = 4