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23 votes
8x+3y= 70; y=2 Solve for x.

2 Answers

2 votes

Answer:

8

Explanation:

x is 8

User Saleem Ali
by
8.9k points
5 votes

Explanation

  • Given the equation.


8x + 3y = 70

with given condition where y = 2.

Therefore, substitute the value of y in the equation.


8x + 3(2) = 70 \\ 8x + 6 = 70

  • Solve the equation for x-term.


8x = 70 - 6 \\ 8x = 64 \\ x = (64)/(8) \longrightarrow (8)/(1) \\ x = 8

  • Answer Check by substituting the value of y and x in the equation.


8x + 3y = 70 \\ 8(8) + 3(2) = 70 \\ 64 + 6 = 70 \\ 70 = 70

Hence, the equation is true for x = 8 and y = 2.

Answer


\large{x = 8}

User Alexey Yakunin
by
8.5k points

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