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Mathematics 7 Online
OpenStudy (anonymous):

Consider the following pair of equations: 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.

OpenStudy (anonymous):

@welshfella can you help me agian?

OpenStudy (welshfella):

ok first replace (substitute) for y in the second equation ( y = x + 4)

OpenStudy (welshfella):

this will give you an equation in x only

OpenStudy (welshfella):

|dw:1429719306052:dw|

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