SOLUTION: how do i solve x = 7 - 10y 10x - 4y = 18 using the substitution method

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Question 643138: how do i solve
x = 7 - 10y
10x - 4y = 18
using the substitution method
Answer by Alan3354(69443) About Me  (Show Source):
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how do i solve
x = 7 - 10y
10x - 4y = 18
using the substitution method
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x is solved for, x = 7-10y
sub for x in the 2nd equation