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AleksandrR [38]
3 years ago
7

Solve for me please

Mathematics
2 answers:
ch4aika [34]3 years ago
8 0

Answer:

{ \rm{10x + 5y + 2z = 5}} \\ { \rm{4x - 5y - 5z = 8}} \\ { \rm{3x + 5y + 4z = 1}}

• First find x

{ \rm{10x = 5 - 5y - 2z -  -  - (i)}}

• Find y

{ \rm{4x = 8 + 5y + 5z -  -  - (ii)}}

• Find z

{ \rm{3x = 1 - 5y - 4z -  -  - (iii)}}

equate the three equations:

{ \rm{0z  - 10= 2y}} \\  \\ { \boxed{ \bf{y =  - 5}}}

Find z

{ \rm{z = ( - 1 \times  - 5)}} \\  \\ { \boxed{ \bf{z = 5}}}

Find x

{ \rm{3x + 5y + 4z = 1}} \\  \\ { \rm{3x  - 25 + 20 = 1}} \\  \\ { \rm{3x = 6}} \\  \\ { \boxed{ \bf{x = 2}}}

a_sh-v [17]3 years ago
4 0

Answer:

z=1/5

y=-1

x=2/5

Step-by-step explanation:

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