Answer:
3x+7
Step-by-step explanation:
4x+7-x=4x-x+7=3x+7
b plus 3 is equal to b squared
Answer: x = 23
Steps:
3−4=2+19
= 3−4+4=2+19+4
= 3=2+19+4
= 3=2+23
= 3−2=2+23−2
= 1=2+23−2
= =2+23−2
= =23
Hope this help! :)