Using basic algebra we can solve this problem. First we need to write out the problem:
5-32+2w = -7
-27+2w = -7
2w = 20
w = 10
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w=10
If I am correct, 9 plus 7 equals 112.
35
9 plus 7 equals 144. Generally, x plus y = x(x+y).
2n plus 7 equals 19 2n equals 12 n equals 6