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Simplifying 5x + 4x + -7 = 4x + -2 + -1x Reorder the terms: -7 + 5x + 4x = 4x + -2 + -1x Combine like terms: 5x + 4x = 9x -7 + 9x = 4x + -2 + -1x Reorder the terms: -7 + 9x = -2 + 4x + -1x Combine like terms: 4x + -1x = 3x -7 + 9x = -2 + 3x Solving -7 + 9x = -2 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -7 + 9x + -3x = -2 + 3x + -3x Combine like terms: 9x + -3x = 6x -7 + 6x = -2 + 3x + -3x Combine like terms: 3x + -3x = 0 -7 + 6x = -2 + 0 -7 + 6x = -2 Add '7' to each side of the equation. -7 + 7 + 6x = -2 + 7 Combine like terms: -7 + 7 = 0 0 + 6x = -2 + 7 6x = -2 + 7 Combine like terms: -2 + 7 = 5 6x = 5 Divide each side by '6'. x = 0.8333333333 Simplifying x = 0.8333333333
| 20-15a+b+6+4a-4a= | | -4x-2(-7x-13)=-84 | | 12+9*9*3= | | -5(2x-6)=49x+11 | | -4+9*-6= | | 1/8*25-4/3 | | 16=1-4n-5 | | 4+4m=16 | | 7+(5m)=0 | | 2o+o+54=180 | | 25x+10y=670 | | 18=x/-3 | | 56x7/8-4x1/4= | | -3x+4(-x+9)=-20 | | 3x^2+70=0 | | -6n+2=8n+2(1+4n) | | -1-a=-3(4+4a) | | -8a-7a= | | m-36.8=475.2 | | -39-6n=8(1+6n)+7 | | -6x-4(-5x+2)=-78 | | x^2+(3+k)*x+(4*k-3)=0 | | -6x-7(2x+8)=-176 | | x^2+(3+k)x+(4*k-3)=0 | | 8y-11-6y+8=0 | | 45-2*(15-3)= | | 5(n-4)=-4n-29 | | x^2+(3+k)x+(4k-3)=0 | | 12x+19=7x+34 | | 6k=3(2k+5) | | 4e+4e+4e=180 | | 3x-2(-7x-3)=142 |