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4n/7 + 8 = 20 subtract 8 from each side: 4n/7 = 12 multiply each side by 7: 4n = 84 n = 21
As follows:- 4n+13 = n-8 4n-n = -8-13 3n = -21 n = -7
n=10/7. i did this one mentally. but are you sure its 8n minus negative 4n or is it 8n minus 4n? 8n- -4n does not equal 8n-4n 8n- -4n is the same as 8n+4n
3n + 4n = -14 7n /7 = -14 /7 n = -2
I assume you mean what is the solution for the value of n. 4n+11-7n = -13 -3n = -24 n=8