1) -5x + 3(3 + 2x) = 2-5x + 9 + 6x = 2x = -7
2) 30 - x = 3(20 - x)30 - x = 60 - 3x2x = 30x = 15
3) 2u - 3(7 - 2u) = 32u - 21 + 6u = 38u = 24u = 3
4) 12 - y = 5(4 - 2y) + 1012 - y = 20 - 10y + 109y = 18y = 2
5) 2 - 2(x - 8) = 4x - 42 - 2x + 16 = 4x - 420 - 2x = 4x - 46x = 24x = 4
6) 2.5z - 3 = z - 4.51.5z = -1.5z = -1
7) 3x + 5 = 0.5x + 102.5x = 5x = 2
8) 2.6 + 2x = 1.9 + 6.62x = 5.9x = 2.95
1) -5x + 3(3 + 2x) = 2
-5x + 9 + 6x = 2
x = -7
2) 30 - x = 3(20 - x)
30 - x = 60 - 3x
2x = 30
x = 15
3) 2u - 3(7 - 2u) = 3
2u - 21 + 6u = 3
8u = 24
u = 3
4) 12 - y = 5(4 - 2y) + 10
12 - y = 20 - 10y + 10
9y = 18
y = 2
5) 2 - 2(x - 8) = 4x - 4
2 - 2x + 16 = 4x - 4
20 - 2x = 4x - 4
6x = 24
x = 4
6) 2.5z - 3 = z - 4.5
1.5z = -1.5
z = -1
7) 3x + 5 = 0.5x + 10
2.5x = 5
x = 2
8) 2.6 + 2x = 1.9 + 6.6
2x = 5.9
x = 2.95