3 years ago

Solve each system by substitution y=2x-1. 3x+8y=11

Mathematics

2 answers:

OLga [1]3 years ago

8 0

Answer:

x=1, y=1

Step-by-step explanation:

Sub y=2x-1 into 3x+8y=11

3x+8(2x-1)=11

3x+16x-8=11

19x=11+8

19x=19

x=1

Sub x=1 into y=2x-1

y=2(1)-1

y=2-1

y=1

adoni [48]3 years ago

7 0

Since 8+3 already equals 11, x=1 and y=1

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