Alegbra. slove the following simultaneous equation .... 2x-7y=7; 3x+y=22
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vkhamble4
19.12.2018
Math
Secondary School
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2x - 7y = 7; 3x + y = 22
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sayyadmohd78
Sayyadmohd78Genius
Answer:
Step-by-step explanation:
2x - 7y = 7 -----------------1
3x + y = 22 ----------------2
multiply whole eq. 2 by 7
21x + 7y = 154 ------------ 3
Add ep. 1. and 3.
2x - 7y = 7
21x + 7y = 154
23x = 161
x = 161÷23
x = 7
Substituiting x = 7 in ep. 1
2(7) - 7y = 7
- 7y = 7 - 14
- 7y = - 7 ( - and - cancel )
7y = 7
y = 7÷7
y = 1
the value of x any y is 7 and 1.
i have solve this question by simultaneous method
if you are satisfy with my answer then mark me as a brainlist.
if there is anything wrong then kindly rectify me
Answered by
1
Answer:
x=7 ; y=1
Step-by-step explanation:
Step-by-step explanation:
2x - 7y = 7 -----------------1
3x + y = 22 ----------------2
multiply whole eq. 2 by 7
21x + 7y = 154 ------------ 3
Add ep. 1. and 3.
2x - 7y = 7
21x + 7y = 154
23x = 161
x = 161÷23
x = 7
Substituiting x = 7 in ep. 1
2(7) - 7y = 7
- 7y = 7 - 14
- 7y = - 7 ( - and - cancel )
7y = 7
y = 7÷7
y = 1
the value of x any y is 7 and 1.
i have solve this question by
simultaneous method
simultaneous methodif you are satisfy with my answer then
mark me as a brainlist.
mark me as a brainlist.if there is anything wrong then kindly rectify me
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