Answer:
x= 7.5
Step-by-step explanation:
2(x+4)= 23
2x+8= 23
2x=15
x=7.5
x = 7.5
2x + 8 = 23
2x + 8 - 8 = 23 - 8
2x = 15
2x ÷ 2 = 15 ÷ 2