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Simplifying x + (x + 4) + (3x + 21) = 180 Reorder the terms: x + (4 + x) + (3x + 21) = 180 Remove parenthesis around (4 + x) x + 4 + x + (3x + 21) = 180 Reorder the terms: x + 4 + x + (21 + 3x) = 180 Remove parenthesis around (21 + 3x) x + 4 + x + 21 + 3x = 180 Reorder the terms: 4 + 21 + x + x + 3x = 180 Combine like terms: 4 + 21 = 25 25 + x + x + 3x = 180 Combine like terms: x + x = 2x 25 + 2x + 3x = 180 Combine like terms: 2x + 3x = 5x 25 + 5x = 180 Solving 25 + 5x = 180 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + 5x = 180 + -25 Combine like terms: 25 + -25 = 0 0 + 5x = 180 + -25 5x = 180 + -25 Combine like terms: 180 + -25 = 155 5x = 155 Divide each side by '5'. x = 31 Simplifying x = 31
| (2x+21)= | | 30=5ln(x^2+1)-5ln(1) | | 56+7w= | | 18x+2x=25 | | 50+4(x+1)=90 | | (6x^2)+18x=0 | | 8000=-16t^2+500t+8000 | | 2a=8-2a | | 30=5ln(x^2+1) | | x+(x+6)+(2x+2)=180 | | .20x-y=1960000 | | (w^5/9)^-3 | | 3(x-6)-6(x-3)=x+3-(x-3) | | 2x+11=2(46)+11 | | 3(x-6)-6(x-3)=x+3-2(x-3) | | 8=9x+6 | | 20+-1x= | | C(x)=x^2-40x+405 | | Y-2y-3y-6=0 | | .05c=.08+7.50 | | x+5=5x+25 | | y-(-5)=-6(x-1) | | 2x-71.50=4308.50 | | x+(x+5)+(2x+11)=180 | | 3/4y-6=0 | | x-20+x= | | 695=13(k+5)+32 | | logx=0.45 | | 7b=85 | | 10(g-836)=740 | | 5x-5(-6-2x)=0 | | 5-7x=2x+8 |