pls solve the above equations with simultaneously methods
pls help me
Answers
Answered by
1
Answer:
x = 8
y = 5
Step-by-step explanation:
(4x - 7y = -3) × 5 ----- (i)
20x - 35y = -15 ----- (ii)
(3x + 5y = 49) ----- × 7 (iii)
21x + 35y = 343 ----- (iv)
Add (ii) and (iv)
20x - 35y + 21x + 35y = -15 + 343
41x = 328
x = 328/41
x = 8
20x - 35y = -15
20(8) - 35y = -15
160 - 35y = -15
35y = 175
y = 175/35
y = 5
Answered by
0
Answer:
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