Teaching EMRS TGT Mock Test 2023 Quantitative Aptitude Algebra Linear Equation in 2 Variable

If 2x - 3y = 4 and (a + b)x - (a + b + 2)y = 2a + 2b represent coincidence lines, then

1
a + b = 4
2
3a + b = 0
3
a + 3b = 0
4
a - b = 7
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