2 years ago

X+y=20 x-y=16 Substitution

Mathematics

2 answers:

sleet_krkn [62]2 years ago

5 0

Step-by-step explanation:

x+ y = 20

- x - y = 16

= 2y = 4

y = 2

put the value of y in any equation u like

x + y = 20

x + 2 = 20

x = 18

kaheart [24]2 years ago

4 0

Answer:

x+ y = 20

x - y = 16

= 2y = 20-16=4

y = 2

Applying the value:

x + y = 20

x + 2 = 20

x = 18

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