Describe and correct the error in solving for one of the variables in the linear system 4x + 5y = -10 and 2x – 4y = 9.
Х
X
Step 1 4x + 5y = -10
2x - 4y = 9
Step 2 (Multiply by 2.)
4x + 5y = -10
4x - 8y = 18
Step 3 -3y = 8
y = -
3
8

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