Question

D}6+X=6,4
E}0,5X-9=1,5
F}4X+3=-19
G}5X+2=2x-1
H}6-3X=-10-4x

Answer 1

d) 6 + x = 6,4 ⇒ x = 6,4 - 6 ⇒ x = 0,4
f) 4x + 3 = -19 ⇒ 4x = -19 + 3 ⇒ 4x = -16 ⇒ x = $\frac{-16}{4}$ ⇒ x = -4
g) 5x + 2 = 2x -1 ⇒ 5x - 2x = -1 -2 ⇒ 3x = -3 ⇒ x = $\frac{-3}{3}$ ⇒ x = -1
h) 6 - 3x = -10 -4x ⇒ -3x + 4x = -10 -6 ⇒ x = -16