One linear equation in two variables cannot be solved. You can only express one of the variables in terms of the other.
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3x-2 = 2x+3 3x-2x = 3+2 x = 5
-1-2x-4x=19-6x-1 = -19x = 3
Add 5 to both sides of the equation to get rid of the - 5. -3x - 5 + 5 = -20 + 5 Solve and simplify. -3x = -15 Divide both sides of the equation by -3. x = 5
2x - 4 = -10 2x = -10 +4 2x = -6 x = -3
6The line of best fit has the equation = -3 + 2.5x. What does this equation predict for a value of x = 3?Answer: 4.5