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Simplifying 4x + 9 + 2x + -9 + 90 = 180 Reorder the terms: 9 + -9 + 90 + 4x + 2x = 180 Combine like terms: 9 + -9 = 0 0 + 90 + 4x + 2x = 180 90 + 4x + 2x = 180 Combine like terms: 4x + 2x = 6x 90 + 6x = 180 Solving 90 + 6x = 180 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-90' to each side of the equation. 90 + -90 + 6x = 180 + -90 Combine like terms: 90 + -90 = 0 0 + 6x = 180 + -90 6x = 180 + -90 Combine like terms: 180 + -90 = 90 6x = 90 Divide each side by '6'. x = 15 Simplifying x = 15
| (x-3+5i)(x-3-5i)(x-4)(x-4)=0 | | (X+13)(x+14)=0 | | 3n+23=4n+24 | | 8z-6+z+6+90=180 | | 8z+6+8z-6+90=180 | | (7b-1)-3(2b+2)=-4 | | y^2-5x=10 | | X(X+28)=0 | | (1/3)(3.14)(16)(6) | | -26/33=13/1x | | y+4+6y-5+90=180 | | 17-3x(4-2x)= | | 3x-5=8x-17 | | 25x^4-51x^2+2=0 | | 6y+18=6(y+3) | | (x+11)(x+12)=0 | | 4cos^2x*4cosx+1=0 | | 10x-10=2x-6 | | 4cos^2x*4cosx=0 | | 27n+36=40n+68 | | 10-2(n+8)+6n=-4 | | 2z+6+11z-7+90=180 | | ln(x+13)-ln(x-1)=3 | | -6a(2a+5c)= | | 7k=30 | | F(x)=(x+11)(x+12) | | 2x+y-77=0 | | t/7=300 | | 10y-8+2y+2+90=180 | | 2(3n+1)=9(5n+2)+1 | | .6x^2-5x=0 | | I3.5=t/30 |