solve the following simultaneous equations
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We have to find a and b ???
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3
Hope it will help you .
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Answered by
4
3a+5b=26........(1)
a+5b=22..........(2)
by elimination method,,,,
1*1, 3a+5b=26
2*3, 3a+15b=66
(-) (-) (-)
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
-10b= -40
or, b = -40/ -10
or, b = 4
a+5b = 22
or, a+5*4= 22( putting b =4)
or, a+20 = 22
or, a = 22-20
or, a = 2
therefore, a = 2
b = 4
a+5b=22..........(2)
by elimination method,,,,
1*1, 3a+5b=26
2*3, 3a+15b=66
(-) (-) (-)
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
-10b= -40
or, b = -40/ -10
or, b = 4
a+5b = 22
or, a+5*4= 22( putting b =4)
or, a+20 = 22
or, a = 22-20
or, a = 2
therefore, a = 2
b = 4
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