just look up math papa algebra calculator it gives you the answer and explains it step by step :)
To find the surface area of the rectangular prism you do.
2(lw + lh + wh).
2((26*18) + (26*8) + (18*8))
2(468 + 208 + 144)
2* 820
the answer is 1640cm^2
Answer:
Simplify (-6) = 3 would be false.
3x+12=39
Minors 12 on both side
3x=27
Divide 3 on both side
X=9