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Simplifying (3x + -15) + 20 = (4x + -15) + k Reorder the terms: (-15 + 3x) + 20 = (4x + -15) + k Remove parenthesis around (-15 + 3x) -15 + 3x + 20 = (4x + -15) + k Reorder the terms: -15 + 20 + 3x = (4x + -15) + k Combine like terms: -15 + 20 = 5 5 + 3x = (4x + -15) + k Reorder the terms: 5 + 3x = (-15 + 4x) + k Remove parenthesis around (-15 + 4x) 5 + 3x = -15 + 4x + k Reorder the terms: 5 + 3x = -15 + k + 4x Solving 5 + 3x = -15 + k + 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. 5 + 3x + -4x = -15 + k + 4x + -4x Combine like terms: 3x + -4x = -1x 5 + -1x = -15 + k + 4x + -4x Combine like terms: 4x + -4x = 0 5 + -1x = -15 + k + 0 5 + -1x = -15 + k Add '-5' to each side of the equation. 5 + -5 + -1x = -15 + -5 + k Combine like terms: 5 + -5 = 0 0 + -1x = -15 + -5 + k -1x = -15 + -5 + k Combine like terms: -15 + -5 = -20 -1x = -20 + k Divide each side by '-1'. x = 20 + -1k Simplifying x = 20 + -1k
| 1/x=21 | | X^3+1=126 | | r^3+2r^2=60 | | r^2+2r^2=60 | | 3a+20=4a+15 | | 3a+20=4+15 | | 2xy+3x=100 | | 4(4a+1)=(4a-3.5)x(4a-3.5) | | 8(8x+2)=(4x-3.5)x(4x-3.5) | | 4z^2+z=9z | | 6x^3-2x^3-2=0 | | (x^2+5)*(x^2-5)=-10 | | (x^2+1)*(x^2-1)=10 | | 18a^9-6a^11=0 | | (x^2+1)*(x^2-1)=0 | | x^4+x^2=70 | | 40=2x+2y | | x^4+50x^2=1 | | x^4+x^2=4 | | 10x+2=6x-10 | | x^4+5x^2+30=0 | | 3x+16=x+8 | | 2x-10=-x-31 | | ((((1-8x)*4)*8-1)*8+1)*8+1=1993 | | x/5-3=15 | | 2x^4+3x^2-30=0 | | x^2+11x=o | | 5x(5x+4)=120 | | x^4+3x^2-30=0 | | x^4+5x^2-30=0 | | x^4+8x^2-30=0 | | 2+(8*2)=x |