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Simplifying 1 + 3x = 21 + -1x Solving 1 + 3x = 21 + -1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'x' to each side of the equation. 1 + 3x + x = 21 + -1x + x Combine like terms: 3x + x = 4x 1 + 4x = 21 + -1x + x Combine like terms: -1x + x = 0 1 + 4x = 21 + 0 1 + 4x = 21 Add '-1' to each side of the equation. 1 + -1 + 4x = 21 + -1 Combine like terms: 1 + -1 = 0 0 + 4x = 21 + -1 4x = 21 + -1 Combine like terms: 21 + -1 = 20 4x = 20 Divide each side by '4'. x = 5 Simplifying x = 5
| 11-9x=37-16x | | -14-3x=10x-9 | | -9(7)=-63 | | x=y+z+2 | | 3x(2x+x^17)= | | abx=-c | | x-b+a=c | | -34-x=6-10x | | -15+25(21)=6+24(21) | | 7x+21=7x-21 | | X^3+7x^2+2x+14=0 | | 3x^2-1x-14=0 | | 15s^2-40s=0 | | 9(-9)+2=8(-9)-7 | | 0.05+0.12(x+5000)=940 | | 5x-3x=15 | | 10c(d+4c+7)= | | (6a^3+4a^2-8)+(3a^3-4a+9)= | | 20y^2-17=18y^2+10y-17 | | 11x=-12+34 | | 2x-4x=12 | | 16x^4+1=0 | | 2x(x+xy+5)= | | (3xy)(5xy^3)= | | 8x=20+6x | | x+512=20x^2+512x | | 100-5x=22x+22 | | x+51=20x^2+512x | | 4x^2+3xy+2x^2+4xy-5xy+x= | | 9-7x=169-42x | | 14-7x=162-35x | | 9-7x=169-42 |