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30 December, 15:34

Solve the following system of equations.

3x+2y-5=0

x=y+10

+5
Answers (1)
  1. 30 December, 18:08
    0
    x = 5 and y = - 5

    Step-by-step explanation:

    You can use algebra or graphing to solve this. I will be using algebra, with substitution.

    Step 1: Move the 5 over in the 1st equation

    3x + 2y = 5

    x = y + 10

    Step 2: Substitute in x

    3 (y + 10) + 2y = 5

    Step 3: Distribute

    3y + 30 + 2y = 5

    Step 4: Combine like terms

    5y + 30 = 5

    Step 5: Move the 30 over

    5y = - 25

    Step 6: Divide both sides by 5

    y = - 5

    Step 7: Plug it back in into an original equation to find x

    x = - 5 + 10

    x = 5
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