Answer:
1 -15
2 -9
Explanation:
First Question
6(1+n) =8n- 3 (n-7)
6+6n=8n-3n+21
6+6n=5n+21
-5n -5n
6-1n=21
-6 -6
-1n=15
n=-15
Second Question
-7 (4x+7)= 3+ 4(-4-6x)
-28x-49=3-16-24x
-28x-49=-13-24x
+24x +24x
-4x-49=-13
+49 +49
-4x=36
x=-9
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