A) 7x + 43.4 = 07x = -43.4x = -43.4/7x ≈ -6.2
B) 3(0.8x + 1.7) - 3.1 = 2.6x2.4x + 5.1 - 3.1 = 2.6x2.4x + 2 = 2.6x2 = 0.2xx = 2/0.2x = 10
A) 7x + 43.4 = 0
7x = -43.4
x = -43.4/7
x ≈ -6.2
B) 3(0.8x + 1.7) - 3.1 = 2.6x
2.4x + 5.1 - 3.1 = 2.6x
2.4x + 2 = 2.6x
2 = 0.2x
x = 2/0.2
x = 10