3x - y + 7/11 + 2 =10,2y + X + 11 by 7 is equal to 10
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rishavrishav1111
Secondary School Math 5+3 pts
3x-(y+7)/11+2=10 , 2y+(x+11)/7=10
Solve for x and y
by Ananya0000 09.09.2018
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arshbilga123
Arshbilga123Expert
3x- (y-7)/11 +2 =10
multiply both sides by 11
33x -(y-7) + 22 = 110
33x-y+7+22=110
33x-y +29 = 110
33x-y = 81 --------------(1)
2y+(x+11)/7 = 10
multiply both sides by 7
14y +(x+11) = 70
14y +x + 11 = 70
x+14y = 59 ------------(2)
33x-y = 81 --------------(1)
x+14y = 59 ------------(2)
Multiply equation (1) by 14
462x-14y = 1134
x+14y = 59 --------(2)
add:26124/6482
463 x = 1193
x= 1193/463
substitute x=1193/463 into equation (2)
1193/463 + 14y = 59
multiply both sides by 463
1193 + 6482y = 27317
6482y = 26124
y = 26124 / 6482
divide the numerator and the denominator by 14
y = 1866/ 463
x= 1193/463
y = 1866/ 463
hope it is helpful
Step-by-step explanation: 3x - y + 29/11 = 10 (1)
2y + x + 11 /7 = 10
2y + x = 59/7 (2)
multiply (1) by 2
we get
6x - 2y = 162/11 (3)
now add (2) and (3)
we get
7x = 1783/11
x= 1783/77 (4)
put (4) in (2)
we get
2y + 1783/77 = 59/7
y = -576/77