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Simplifying 5x + 20 + -7x = 7(3 + x) + -3x Reorder the terms: 20 + 5x + -7x = 7(3 + x) + -3x Combine like terms: 5x + -7x = -2x 20 + -2x = 7(3 + x) + -3x 20 + -2x = (3 * 7 + x * 7) + -3x 20 + -2x = (21 + 7x) + -3x Combine like terms: 7x + -3x = 4x 20 + -2x = 21 + 4x Solving 20 + -2x = 21 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 20 + -2x + -4x = 21 + 4x + -4x Combine like terms: -2x + -4x = -6x 20 + -6x = 21 + 4x + -4x Combine like terms: 4x + -4x = 0 20 + -6x = 21 + 0 20 + -6x = 21 Add '-20' to each side of the equation. 20 + -20 + -6x = 21 + -20 Combine like terms: 20 + -20 = 0 0 + -6x = 21 + -20 -6x = 21 + -20 Combine like terms: 21 + -20 = 1 -6x = 1 Divide each side by '-6'. x = -0.1666666667 Simplifying x = -0.1666666667
| y=25x+60 | | 8x+4y=8 | | (x-3)(x-1)= | | X+2X+X+20=180 | | 1-xy-20X^2b^2= | | 9(t+4)=0 | | 1-xy-2X^2b^2= | | -9x(x-1)= | | 122.00=5x+4y | | X+X+30+60=180 | | 5(24.4-.8y)+4y=122.00 | | (5s-4)(6s+6)= | | 105-84=27y-34y | | 105-84=27y-34 | | 20x^2+49x+30= | | 4v*2-48v+108= | | -2x[(5x-4y)-(3x+2y)+(2x+3y)]= | | 5(24.2-.8y)+4Y=122.00 | | f(-x)= | | f(x+9)= | | 4x^3-22x^2+30x= | | 5x=122.00-4y | | f(5)= | | (6x+2)*2= | | (9x^3-5x^2+8x)-(6x^2+3x+6)= | | x^4z-5yz-x^4+5y= | | 3*5t+7=-8 | | 3*5+7= | | 10y^3-27y^2-81y= | | 8-7n+2n=12-99 | | 5x+4y=122.00 | | 5z^2-12z-32= |