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irina1246 [14]
3 years ago
9

11c - 2d = -2 c + 8d = 8 using the substitution method

Mathematics
1 answer:
Darya [45]3 years ago
4 0
<span>A) 11c - 2d = -2
B) c + 8d = 8
</span><span>B) c  = 8 - 8d then substitute this into A)

</span><span>A) 88 -88d - 2d = -2
A) 90 = 90d
d = 1
c = 0

</span>
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