arnold2619
04.02.2021 •
Mathematics
Solve the following system using the substitution method.you must show ALL work and use the substitution method.
4x+y=14
x-2y=8
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Ответ:
y=-2
x=4
Step-by-step explanation:
4x+y=14
x-2y=8 then x=8+2y
substitute for x in 4x+y=14
4(8+2y)+y=14
32+8y+y=14
reduce
32+9y=14
32+9y-32=14=32
9y=-18
9y/9=-18/9
y=-2
x=8+2(-2)=4
Ответ:
4
Step-by-step explanation:
add the area