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Can u please answer this question ASAP solve the simultaneous equation using the substitution method y=2x-1 and y=3x+4
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2 votes
Can u please answer this question ASAP

solve the simultaneous equation using the substitution method

y=2x-1 and y=3x+4

User Yoshiiiiiiii
by
8.7k points

1 Answer

5 votes
Set both y’s equal to each other.

2x-1 = 3x+4
2x-3x = 4-(-1)
-x = 5
x = -5

Plug x = -5 into any of the given equation. I will use the first one as an example.

y = 2x-1
y = 2(-5)-1
y = -11

Answer: (-5, -11)
User MBU
by
8.5k points
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