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Nikitich [7]
3 years ago
10

Solve the system of equations using the substitution method.

Mathematics
2 answers:
ryzh [129]3 years ago
8 0

Answer:

x

Step-by-step explanation:

vaieri [72.5K]3 years ago
3 0

Answer:

(7, 3 )

Step-by-step explanation:

Given the 2 equations

x = 4y - 5 → (1)

2x + 3y = 23 → (2)

Substitute x = 4y - 5 into (2)

2(4y - 5) + 3y = 23 , that is

8y - 10 + 3y = 23

11y - 10 = 23 ( add 10 to both sides )

11y = 33 ( divide both sides by 11 )

y = 3

Substitute y = 3 into (1) for corresponding value of x

x = 4(3) - 5 = 12 - 5 = 7

solution is (7, 3 )

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Answer:

w = 13yd, l = 18yd

Step-by-step explanation:

let x be width, so x+5 = length

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