Solve the system by the addition method. 7) x - 4y =-15 8x - 5y =...

Question

Question

Solve the system by the addition method.
7) x - 4y =-15 8x - 5y = 42

math Advanced-Math

Answer 1

Answer #1

- 4s = -15 8x - 5Y : 42 Multipt -g in Now x - 49 - - | 1 .8x +32g = 120 xx 54 = 42 these two equation Adding : 个介 27日 - 162 }

Answer 2

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