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Simplifying 15x + -20y = -7 Solving 15x + -20y = -7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20y' to each side of the equation. 15x + -20y + 20y = -7 + 20y Combine like terms: -20y + 20y = 0 15x + 0 = -7 + 20y 15x = -7 + 20y Divide each side by '15'. x = -0.4666666667 + 1.333333333y Simplifying x = -0.4666666667 + 1.333333333y
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