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Naya [18.7K]
4 years ago
8

Solve the system of linear equations by substitution. 2x-y=3 x+5y=14

Mathematics
1 answer:
adoni [48]4 years ago
4 0
Let 2x – y = 3 ——— equation 1

Let x + 5y = 14 ——— equation 2

Making x the subject in eqn 1, = x = y + 3 / 2 ——— eqn 3

• Put eqn 3 in eqn 2

(y + 3 / 2) + 5y = 14

6y = 14 – 3/2

6y = 25/2

y = 25/12

• put y = 25/12 in eqn 3

x = (25/12 + 3/2)

x = 43/12
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3 years ago
A rectangular photograph has an area of 65 square inches. If the length of the photo is 3 inches less than twice it's height, fi
tankabanditka [31]
A = L * H
A = 65
L = 2H - 3

65 = H(2H - 3)
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3 years ago
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If you were to find the inverse of f(x), then (-10,0) would be on the graph.
6 0
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