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natita [175]
3 years ago
7

Use substitution to solve each system of equations. 4x – 5y = –7 y = 5x

Mathematics
2 answers:
Komok [63]3 years ago
8 0
Refer to answers in the picture.

sweet [91]3 years ago
3 0
4x - 5(5x)= -7
4x - 25x = -7
-21x = -7
x = 1/3

y = 5(1/3)
y = 5/3
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Question (38)

i). Two expressions are -5x² - 4yz + 15 and x³+ 4x²- 3yz

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