Math, asked by yougotnojams, 4 months ago

pls help me with these questions

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Answered by 7991159100s

$1. \: \: \: 8x = 20 + 3x \\ \: \: \: \: \: \: 8x - 3x = 20 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 5x = 20 \: \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{20}{5} \: \: \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 4 \\ \\ 2. \: \: \: 8x + 3 = 27 + 2x \\ \: \: \: \: \: \: \: 8x - 2x = 27 - 3 \\ \: \: \: \: \: \: \: \: \: \: \: 6x = 24 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{24}{6} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: x = 4 \\ 3. \: \: \: 5x + 7 = 2x + 8 \\ 5x - 2x = 8 - 7 \\ 3x = 1 \\ x = \frac{1}{3}$

2z-1=14-z

2z+z=14+1

3z=15

z=5

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