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प्रश्न
Find the value of Dx for the equation 4x + 3y = 19 and 4x − 3y = −11
विकल्प
24
0
− 24
108
उत्तर
− 24
Explanation:
Here, a1 = 4, b1 = 3, c1 = 19
a2 = 4, b2 = -3, c2 = -11
∴ Dx = `|(c_1, b_1),(c_2, b_2)| = |(19, 3),(-11, -3)|`
= -57 + 33
= -24
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