Need help with this ridiculously hard math 1 algebra

[hallow gust]

Try dividing by h on both sides and go from there, also would recommend not showing your name

[wheat herald]

A = 1/2h(b1+b2)
2A = h(b1+b2)
2A/h = b1 + b2
2A/h - b1 = b2

[west trench]

Thank you so much

[zenith steppe]

Do not provide full solutions

[wheat herald]

Yw

[quiet mica]

.solved please?

[zenith steppe]

.solved