Question

x+y=116
y+z=144
z+x=76

x+y+z=?​

Answer 1

Answer:

x+y=116

x=116 -y

z+x=76

z+116-y=76

z-y=76-116

z-y= -40

y=z+40

y+z=144

z+40+z=144

2z=144-40

2z=104

z=52

y=z+40

y=52+40

y=92

x=116-y

x=116-92

x=24

x+y+z

=24+92+52

=168

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