Depending on what sign is supposed to appear before the 4,
the x-intercept is either +3 or -3 .
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2y - 4x = -12 2y = 4x - 12 At the x-intercept, y = 0. 0 = 4x - 12 0 = x - 3 x = 3
-4a = 48 a = -12
It is a linear equation. The highest power of x in the equation is 1 (3x1-4=12) so its "degree" is 1, and equations of "degree 1" are called linear equations.
It is a linear equation in a single variable, x.
For x-intercept, y = 0 so -4x = -12 therefore x = 3.
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