Please help me I'm lost
solve by the addition method:
x+y=4 and 2x+y=5
x + y = 4 ------- eq (i)
2x + y = 5 ------- eq (ii)
- x - y = - 4 ------- Multiplying eq (i) by - 1 ------ eq (iii)
x = 1 ------- Adding eqs (iii) & (ii)
1 + y = 4 --------- Substituting 1 for x in eq (i)
y = 4 - 1
y = 3
You can do the check!!
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