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Simplifying 2x + 7 * 3 = 4x + 9 Multiply 7 * 3 2x + 21 = 4x + 9 Reorder the terms: 21 + 2x = 4x + 9 Reorder the terms: 21 + 2x = 9 + 4x Solving 21 + 2x = 9 + 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. 21 + 2x + -4x = 9 + 4x + -4x Combine like terms: 2x + -4x = -2x 21 + -2x = 9 + 4x + -4x Combine like terms: 4x + -4x = 0 21 + -2x = 9 + 0 21 + -2x = 9 Add '-21' to each side of the equation. 21 + -21 + -2x = 9 + -21 Combine like terms: 21 + -21 = 0 0 + -2x = 9 + -21 -2x = 9 + -21 Combine like terms: 9 + -21 = -12 -2x = -12 Divide each side by '-2'. x = 6 Simplifying x = 6
| f/4-84 | | X+3=-23+12 | | 3cot^2(x-1)=0 | | x+10=110-4x | | 7+3t-1=8t+10-3t | | lg(x+1)=1-lgx | | 3(x-3)-2x=2x+7 | | -10/(x^2-9)=0 | | 26=x/2-12 | | 7/79=n/95 | | 7/79=95/x | | 6^n*6^4/6^-8 | | 5u+10=55 | | 79/7=95/x | | 8a-3(2a-5)=13 | | 6^n86^4/6^-8= | | 27.89(3)+12.52s+4.98(7)+12.55(5)+27.95=300 | | (4y-18)+(y+14)+75=180 | | (6x-11)+(x+5)+81=180 | | 0=x^2-4.5x+6 | | .15(12x)+.25(12y)=.21(12) | | -19/7v | | 7y+19=10y-29 | | 14(t-5)+7t=7(3t+2)-9 | | (4y-18)+(y+14)+(90)=180 | | 37/7=148/n | | x+3x+15=111 | | (4y-18)+(y+14)+(15)=180 | | -10+-1.5= | | 20y+3y=-2 | | (6x-11)+(x+5)+(81)=180 | | 31/5=93/t |