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To solve these linear equations, we have to substitute
To convert the given linear equations to the standard form, substitute
Solve the following equations:
76x − 23y = 7 x − y = −2
76x − 23y = 7…(1)
x − y = −2…(2)
(3) × 76
76x − 76y = −152…(3)
(3) + (2)
y = 3, x = 1
x − y = 4
x + y = 12
x − y = 4…(1)
x + y = 12…(2)
(1) + (2)
2x = 16, x = 8, y = 4
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