Question

15x + 20 = 215
1 + 6n = 3 - 2n
2x + 17 = 8x + 317

Answer 1

A) 15x = 215 - 20
x = 195÷15
x = 13

B) 2n + 6n = 3 - 1
8n = 2
n = 2÷8
n= 0,25

C) -317 + 17 = 8x - 2x
-300= 6x
x = -300÷6
x = -50

;-)