Question

Ayuda porfa :((((
plissss

Answer 1

Explicación paso a paso:

• 4n + 17 - 25 = 3,5
• 4n - 8 = 3,5
• 4n = 3,5 + 8
• 4n = 11.5
• n = 11.5/4
• n = 2.875

• 7x/3 + 1/2 - 12/4 = 8
• 7x/3 + 1/2 - 6/2 = 8
• $\frac{7x}{3} + \frac{1 - 6}{2} = 8 \\ \\ = \frac{ - 5}{2}$
• 7x/3 - 5/2 = 8
• $6( \frac{7x}{3} - \frac{5}{2} ) = 6 \times 8 \\ \\ = 2 \times 7x - 3 \times 5 = 48$
• 14x - 15 = 48
• 14x = 48 + 15
• 14x = 63
• x = 63/14
• x= 9/2

• 9y - 37 = -21
• 9y = -21 + 37
• 9y = 16
• y = 16/9

Answer 2

Explicación paso a paso:

4n+17-25=3,5

4n=3,5-17+25

4n=11,5

n=11,5/4

n=2,875

$\frac{7x}{3} +\frac{1}{2} -\frac{12}{4}=8\\\\ \frac{7x}{3}=8-\frac{1}{2}+\frac{12}{4}\\\\7x=3(8-\frac{1}{2}+\frac{12}{4})\\\\7x=24-\frac{3}{2} +\frac{36}{4} \\\\7x=\frac{96-6+36}{4} \\\\7x=\frac{126}{4}=\frac{63}{2} \\\\x=\frac{63}{2*7} \\\\x=\frac{9}{2}$

x=4,5

9y-37=-21

9y=-21+37

9y=16

y=16/9

y=1,78