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5x + 10y = 18 x = y - 6 Which of the following equations is the result of substituting y - 6 in for x in the first equation? 5x + 10y - 6 = 18 5y - 6 + 10y = 18 5y - 30 + 10y = 18
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2 votes
5x + 10y = 18

x = y - 6
Which of the following equations is the result of substituting y - 6 in for x in the first equation?

5x + 10y - 6 = 18
5y - 6 + 10y = 18
5y - 30 + 10y = 18

User Sweety Bertilla
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7.0k points

2 Answers

3 votes
5y - 30 + 10y = 18 <== ur answer
User James Kleeh
by
8.3k points
2 votes
5x + 10y = 18

x = y -6, we substitute this into first equation.

5x + 10y = 18

5*(y - 6) + 10y = 18

5y - 30 + 10y = 18

So it the last option from the top.
User Thodoris
by
6.8k points
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