1) 3(x-2) = x+23x - 6 = x + 23x - x = 2 + 62x = 8x = 4
2) 5 - 2(x-1) = 4 - x5 - 2x + 2 = 4 - x7 - 2x = 4 - x7 - 4 = 2x - x3 = x
3) (7x+1) - (9x+3) = 57x + 1 - 9x - 3 = 5-2x - 2 = 5-2x = 7x = -7/2
4) 3.4 + 2y = 2.3 - 0.3(y-6)3.4 + 2y = 2.3 - 0.3y + 1.82.3y + 2y = 2.3 + 1.8 - 3.44.3y = 1.7y = 1.7 / 4.3y ≈ 0.3953
1) 3(x-2) = x+2
3x - 6 = x + 2
3x - x = 2 + 6
2x = 8
x = 4
2) 5 - 2(x-1) = 4 - x
5 - 2x + 2 = 4 - x
7 - 2x = 4 - x
7 - 4 = 2x - x
3 = x
3) (7x+1) - (9x+3) = 5
7x + 1 - 9x - 3 = 5
-2x - 2 = 5
-2x = 7
x = -7/2
4) 3.4 + 2y = 2.3 - 0.3(y-6)
3.4 + 2y = 2.3 - 0.3y + 1.8
2.3y + 2y = 2.3 + 1.8 - 3.4
4.3y = 1.7
y = 1.7 / 4.3
y ≈ 0.3953