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Simplifying 121 = -6x + 7(3x + -2) Reorder the terms: 121 = -6x + 7(-2 + 3x) 121 = -6x + (-2 * 7 + 3x * 7) 121 = -6x + (-14 + 21x) Reorder the terms: 121 = -14 + -6x + 21x Combine like terms: -6x + 21x = 15x 121 = -14 + 15x Solving 121 = -14 + 15x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15x' to each side of the equation. 121 + -15x = -14 + 15x + -15x Combine like terms: 15x + -15x = 0 121 + -15x = -14 + 0 121 + -15x = -14 Add '-121' to each side of the equation. 121 + -121 + -15x = -14 + -121 Combine like terms: 121 + -121 = 0 0 + -15x = -14 + -121 -15x = -14 + -121 Combine like terms: -14 + -121 = -135 -15x = -135 Divide each side by '-15'. x = 9 Simplifying x = 9
| 10x+7=13+4x | | 15x+2=29 | | s^3-1000=0 | | 4x-3+9=3x-3 | | f(12)=1/4(7)-3 | | -15+10x-9x=15 | | log[3](x-5)=3 | | 5s+3.93=40.58 | | -x-16=2x+8 | | -13=5v+7 | | 5x/8=40 | | arctan(3/2) | | 13x+8y=1100 | | 15=-3+4y | | 6+2(7y-7)=-2(4y-1)+8y | | 7c+4=31 | | Y/9=42 | | 12u=4u+64 | | 5x+56=x+20 | | -2.75x-1.75=20.25 | | X+X+45=236 | | X^2-0.4x+0.08=0 | | 3s+20.35=90.10 | | x/2=3/2.91 | | 3/2.91=2/x | | 6u-5+2(4u+3)=-4(u+2) | | -5y+2=0 | | 2v+4v=26 | | -.5x^2+40x-300=0 | | 8(2.18)=32 | | 3x-5x=2x+5 | | (2.9)=123 |