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Jet001 [13]
3 years ago
10

Use the substitution method to solve the system of equations.

Mathematics
1 answer:
vitfil [10]3 years ago
7 0

Answer:

A x=5 y=-2

Step-by-step explanation:

y = x − 7 ; 3 x + 7 y = 1

y = x - 7

Substitute

x − 7 for y in 3 x + 7y = 1:

3x + 7y = 1

3x + 7(x-7) = 1

10x - 49 = 1

10x = 50

x = 5

Substitute:

y = 5 - 7

y = -2

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3 years ago
Solve each literal equation for 'K'.<br> a) T=4K/M b) bm-Kn=14
77julia77 [94]
a) T = 4K / M

1) multiply both sides by M => TM = 4K

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Answer: K = TM / 4

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3 years ago
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Answer:

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3 years ago
James works at a shop and earns 5.5% commission on his sales. Last month, he earned $265.32 in commission. Calculate his sales f
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Answer:

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