Question

(17n-8n) · 13=351,(19n-6n): 4=26;(16m+5m): 18=7;​

Answer 1

Пошаговое объяснение:

(17n-8n)*13=351

9n*13=351

9n=27

n=3

(19n-6n):4=26

13n=104

n=8

(16m+5m):18=7

21m:18=7

21m=126

m=6

Answer 2

Let's solve each equation step by step:

1. $(17n - 8n) \cdot 13 = 351$ Simplify the left side of the equation: $9n \cdot 13 = 351$ Multiply both sides by 1/9 to solve for $n$: $n = \frac{351}{9 \cdot 13}$ $n = \frac{351}{117}$ $n = 3$

So, the solution for the first equation is $n = 3$.

2. $(19n - 6n) \div 4 = 26$ Simplify the left side of the equation: $13n \div 4 = 26$ Multiply both sides by 4 to solve for $n$: $13n = 26 \cdot 4$ $13n = 104$ Divide both sides by 13 to solve for $n$: $n = \frac{104}{13}$ $n = 8$

So, the solution for the second equation is $n = 8$.

3. $(16m + 5m) \div 18 = 7$ Simplify the left side of the equation: $21m \div 18 = 7$ Multiply both sides by 18 to solve for $m$: $21m = 7 \cdot 18$ $21m = 126$ Divide both sides by 21 to solve for $m$: $m = \frac{126}{21}$ $m = 6$

So, the solution for the third equation is $m = 6$.

To summarize:

1. $n = 3$
2. $n = 8$
3. $m = 6$