math linear equations in two variable class 10
4x + 3y=5;
2x-y=2
brsingh:
we have to express as a vector equality. Am i right
hi Maryam, can you please mark my answer as brainlist
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Multiply eq. 2x - y =2 with 2 and subtract eq. 2 from eq. 1
4x + 3y - ( 4x - 2y) = 5-4
4x + 3y - 4x + 2y = 1
5y = 1
y = 1/5 = 0.5
Now put Value of y in 2x - y = 2
2x - 1/5 = 2
(10 x - 1) / 5 = 2
10x - 1 = 2×5
10x - 1 = 10
10x = 10 + 1 = 11
x = 11/ 10 = 1.1
Plz mark my answer as brainlist
4x + 3y - ( 4x - 2y) = 5-4
4x + 3y - 4x + 2y = 1
5y = 1
y = 1/5 = 0.5
Now put Value of y in 2x - y = 2
2x - 1/5 = 2
(10 x - 1) / 5 = 2
10x - 1 = 2×5
10x - 1 = 10
10x = 10 + 1 = 11
x = 11/ 10 = 1.1
Plz mark my answer as brainlist
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