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nydimaria [60]
3 years ago
7

X+2y=10 Y=4x-22 solve the system by substitution method

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0

Answer:

{x,y} = {3,5}

earnstyle [38]3 years ago
5 0

Answer:

(6, 2 )

Step-by-step explanation:

Given the 2 equations

x + 2y = 10 → (1)

y = 4x - 22 → (2)

Substitute y = 4x - 22 into (1)

x + 2(4x - 22) = 10 ← distribute and simplify left side

x + 8x - 44 = 10

9x - 44 = 10 ( add 44 to both sides )

9x = 54 ( divide both sides by 9 )

x = 6

Substitute x = 6 into (2) for corresponding value of y

y = (4 × 6) - 22 = 24 - 22 = 2

Solution is (6, 2 )

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