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<h2><em><u>Answ</u></em><em><u>er</u></em><em><u>:</u></em><em><u>-</u></em></h2><h3>1.) 3x + 2 = 15</h3>
➪ 3x = 15 - 2
➪ 3x = 13
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<h3>2.) 5x - 8 = 52</h3>➪ 5x = 52 + 8
➪ 5x = 60
➪ x =
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<h3>3.) 2(x+1) = 14</h3>➪ 2x + 2 = 14
➪ 2x = 14 - 2
➪ 2x = 12
➪ x =
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<h3>4.) 1/4 x + 6 = 12</h3>➪
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➪
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<h3>5.) 1/5 + 2y = 2/5</h3>➪
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Answer: 5.22 seconds
<u>Step-by-step explanation:</u>
t represents time and y represents the height.
Since we want to know when the ball hits the ground, find t when y = 0
Ball 1 starts at a height of 109 --> h = 109
0 = -16t² + 109
16t² = 109
t = 5.22