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Simplifying (3x + 1) + (4x + -7) = 90 Reorder the terms: (1 + 3x) + (4x + -7) = 90 Remove parenthesis around (1 + 3x) 1 + 3x + (4x + -7) = 90 Reorder the terms: 1 + 3x + (-7 + 4x) = 90 Remove parenthesis around (-7 + 4x) 1 + 3x + -7 + 4x = 90 Reorder the terms: 1 + -7 + 3x + 4x = 90 Combine like terms: 1 + -7 = -6 -6 + 3x + 4x = 90 Combine like terms: 3x + 4x = 7x -6 + 7x = 90 Solving -6 + 7x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + 7x = 90 + 6 Combine like terms: -6 + 6 = 0 0 + 7x = 90 + 6 7x = 90 + 6 Combine like terms: 90 + 6 = 96 7x = 96 Divide each side by '7'. x = 13.71428571 Simplifying x = 13.71428571
| X^5+3x^4-2x^3-x-1=0 | | Kevin= | | 16=2p+8 | | 0.5(-2.5x-4.7)=16.9 | | log[5](x+3)-log[5](x)=2 | | 4*-6-y=-15 | | -16(x^2)+24x+50=0 | | -3p+6=q+zforq | | 15-3(y+5-7)= | | (2x+2)=180 | | -3p+6=q+z | | -6w+3(w-8)=-18 | | 10m+2+7m-3+5m= | | -(1-x)-5(3x+7)=-36 | | 3(x-1)=5(x+6)-10 | | 7y*2x= | | 8(r+9)+7r= | | 4[5-4(3-t)]-2=5[4(5t-4)+13]-38 | | a+2b+2c=540 | | -86-2(11b)+4(5b)+26= | | 10x^2+13x+9=0 | | (4x+9)=90 | | 8x=9+8x | | -5x^2-40x-72=0 | | c+6+4c-3+4= | | -2x+8+3x=10-34 | | k+13=35 | | j-86=9 | | -6x+10x=3x+7 | | 7p-6+8p-2-2p= | | 8x+13=7x+5 | | (7x+4)=90 |