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Simplifying 4(x + 2) + -3 = (-21) Reorder the terms: 4(2 + x) + -3 = (-21) (2 * 4 + x * 4) + -3 = (-21) (8 + 4x) + -3 = (-21) Reorder the terms: 8 + -3 + 4x = (-21) Combine like terms: 8 + -3 = 5 5 + 4x = (-21) 5 + 4x = -21 Solving 5 + 4x = -21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4x = -21 + -5 Combine like terms: 5 + -5 = 0 0 + 4x = -21 + -5 4x = -21 + -5 Combine like terms: -21 + -5 = -26 4x = -26 Divide each side by '4'. x = -6.5 Simplifying x = -6.5
| 10x+3y= | | 5x-(-x+3)=x-5 | | n+6=5.6 | | 6x^3+27x^2-15x=0 | | 6[6-8(-4x-1)]=192x+84 | | 180-2(175-2y)=(175-2y)+y+5 | | 56-9n=14+12n | | 2x-5d=31c | | 142=-3-5(1-6n) | | Y=14+20X | | 9x+8a=2c-6a | | y-5=.33(x+12) | | 12-4y=40 | | 7(n-4)-(5-6n)=12n | | -83=5-4(1+3x) | | 2x^5+64=0 | | 4x^3-x-63=0 | | 32+.75c=47 | | ax+bx=c+7 | | -5(5y+8)=-140 | | (2x+7)(5x^2-19x+12)=0 | | 6-6n=6n-10n+10 | | 3(5-2)+9=-18 | | .75w-12=.66w | | -8+8x=4x+6x | | F(-5)=2x-7 | | 9+2x-2=5x-11 | | 4c-12=29 | | 180=y+(X+y+5) | | -2(-7+8m)=94 | | -8+8=4x+6x | | .75x=36 |