-9-7x=-5
express first the equation in terms of x,
where,
7x=-9+5
then,
7x=-4
thus,
x=-4/7
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-7x + 5 = -9 -7x = -14 7x = 14 x = 2
7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4
2x + 5 = -76 - 7x Add 7x to both sides: 9x + 5 = - 76 Subtract 5 from both sides: 9x = -81 Divide both sides by 9: x = -81/9 = -9
7*x - 5 + 14 = 77*x + 9 = 77*x = -2x = -2/7x equals minus two sevenths
It is a linear equation in one variable, x.