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1. Solve for x: 3x + 5 = 11

Solution:

3x = 11 - 5
3x = 6
x = 6 / 3
x = 2

2. Solve for y: 2y - 4 = 10

Solution:

2y = 10 + 4
2y = 14
y = 14 / 2
y = 7

3. Solve for z: 5z + 3 = 18

Solution:

5z = 18 - 3
5z = 15
z = 15 / 5
z = 3

4. Solve for a: 5a + 3 = 18

Solution:

5a = 18 - 3
5a = 15
a = 15 / 5
a = 3