Question

A) 27-2x=5

B). 18-3x=5

C) 3=39-4 x

D) 5x=3x+74


Ajutor va rog

Answer 1

A.27-2x=5
2x=27-5
2x=22
x=22:2
x=11
B.18-3x=5
3x=18-5
3x=13
x=13:3x
x=4,(3)
C.3=39-4x
4x=39-3
4x=36
x=36:4
x=9
D.5x=3x+74
5x-3x=74
2x=74
x=74:2
x=37

Answer 2

a) 27 - 2x = 5 ⇒ 2x = 22 ⇒ x = 11
b) 18 - 3x = 5 ⇒ 3x = 13 ⇒ x = $\frac{13}{3}$
c) 3 = 39 - 4x ⇒ 4x = 36 ⇒ x = 9
d) 5x = 3x + 74 ⇒ 74 = 2x ⇒ x = 37

/robèrtinni