How to solve:
5x+2=27
5x=25 (Subtract 2 from each side)
x=25/5=5 (Divide each side by 5)
So, x=5
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This is a system of equations:-x + 5y = 10-5x + 2y = 27Multiply the first equation by 5.-5x + 25y = 50Subtract the 2 equations:23y = 23Solve:y = 1-x + 5(1) = 10-x = 5x = -5Thus, the ordered pair is (-5, 1).
3x+2 = 5x so 2x = 2 and hence x = 2/2 = 1
Y=-1/2(x)
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
The 7x and the 5x are like terms. This means that you can add them up. Think about it, 7 x's plus 5x's equals 12x's. From there, you can divide 12 from both sides of the equation, and you will get that x = 2.