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taurus [48]
3 years ago
7

5x+12=-7x solve each system by subsitution

Mathematics
2 answers:
notka56 [123]3 years ago
8 0
On the problem minus 5x to the -7 so you'll just have 12= -12x and the answer is x=-1 
Reil [10]3 years ago
5 0
5x+12=-7x
12x+12=0 (+7x)
12x=-12 (-12)
x=-1 (/12)

y=5x+12
y=5(-1)+12
y=-5+12
y=7

Hope this helps:)
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