Solve this system of equations. Write your final answer as a coordinate point. (Show your work) -2x + 2y = 10 2x – 10y = -18 About the author Alaia
Answer: The answer is (4,1) Step-by-step explanation: -2x + 2y = 10 -2x = 10 – 2y 2x = 2y – 10 —————- (i) 2x – 10 = -18 Substitute (i) (2y – 10) – 10 = -18 2y – 20 = -18 2y = -18 +20 2y = 2 y = 1 2x + 10y = 18 2x + 10(1) = 18 2x + 10 = 18 2x = 18 – 10 2x = 8 x = 4 The answer is (4,1) Reply
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Answer:
The answer is (4,1)
Step-by-step explanation:
-2x + 2y = 10
-2x = 10 – 2y
2x = 2y – 10 —————- (i)
2x – 10 = -18
Substitute (i)
(2y – 10) – 10 = -18
2y – 20 = -18
2y = -18 +20
2y = 2
y = 1
2x + 10y = 18
2x + 10(1) = 18
2x + 10 = 18
2x = 18 – 10
2x = 8
x = 4
The answer is (4,1)