Mathematics
mchie29
2016-09-19 01:26:54
please help giving out 20 points y = x + 4 y = −2x − 2 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form
ANSWERS
annbabi09
2016-09-19 01:51:51

So substitute the first equation (y=x+4) into the second equation as so: 1. x+4=-2x -2   +2x    +2x 2. 3x+4=-2          -4   -4 3. 3x = -6     /3     /3    [^dividing symbol] 4. x = -2

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