Step 1: Subtract 7 from both sides.
8x+7−7=55−7
8x=48
Step 2: Divide both sides by 8.
8x 8
=
48
8
x=6
Hope I could help! :)
Volume would be 42 cubed cm. (1/2)*7*4*3=42.
First you simplify t/2.5=-5.2
Which is 0.4t=-5.2
Then we divide both sides by 0.4 which you get t=-13 as your answer so it's D
Answer:
-9
Step-by-step explanation:
-9 x -9 x -9 = -729
-9 x -9 = 81 x -9 = -729