Respuesta :

XxToXiCxX

Answer:↓↓↓Under

Step-by-step explanation:

N.1:

x=4y-5

Substitue 2(4y-5)+3y=23

8y-10+3y=23

11y-10=23

11y=33

y=3

Substitue x=4(3)-5=12-5=7; x=7

N.2:

x+2y=6, x=6-2y

Substitute -3(6-2y)-y=7

-18+6y-y=7

-18+5y=7

5y=25

y=5
1. 2(4y-5)+3y=23
8y-10+3y=23
+10. +10
8y+3y=33
11y=33
divide by 11
ANSWER IS Y=3 X=7
plug y in to find x x=4(3)-5



2. x+2y=6
-2y
x=6-2y
plug into other equation
-3(6-2y)-y=7
-18+6y-y=7
-18+5y=7
+18 +18
5y=25
divide by 5
y=5
plug into other equation to find x
x+2(5)=6
x+10=6
-10 -10
x=-4
ANSWER. Y=5. X= -4

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