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Simplifying (9 + 4) + -1(2x + -21) = 39 Combine like terms: 9 + 4 = 13 (13) + -1(2x + -21) = 39 13 + -1(2x + -21) = 39 Reorder the terms: 13 + -1(-21 + 2x) = 39 13 + (-21 * -1 + 2x * -1) = 39 13 + (21 + -2x) = 39 Combine like terms: 13 + 21 = 34 34 + -2x = 39 Solving 34 + -2x = 39 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-34' to each side of the equation. 34 + -34 + -2x = 39 + -34 Combine like terms: 34 + -34 = 0 0 + -2x = 39 + -34 -2x = 39 + -34 Combine like terms: 39 + -34 = 5 -2x = 5 Divide each side by '-2'. x = -2.5 Simplifying x = -2.5
| 6(-3x+4)=10x+8 | | 5-(5*8)+7= | | 5x-7=8-2x | | 2q+3=7 | | y-5.2=8.7 | | 9x-3.2=6.6+8x | | y=2x(1-x-2x^2) | | 15t+1.5x=12 | | -5=6x-7x+4 | | y=(1-x-2x^2)(1-x-2x^2) | | (7x^2-4x-3)+(-4x^2+6x-7)=3x^2+2x+-10 | | -3m+2=5(2m-3) | | 20x^2-10=0 | | 2(n-40)=3n | | 13x-30=8x+25 | | .33x-4=.22222y | | x(x+4)=8x-3 | | -43+x=15 | | x+(0.15x)=275 | | 4+2v=8 | | 1-3x+(x+2)(x-3)= | | 20z=320 | | x+(0.15x)=310 | | 5x(3x+4)=0 | | -6+2=-7x-1 | | 18x+26=14x+90 | | 7a(x+5y)-b(x+5y)=(x+5y)(7a-b) | | 9y-30=2y+5 | | 11x+6=2x+28 | | 11y=176 | | 11y=76 | | -3x+5(2x-1)=-5 |