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Simplifying 7(x + -3) = 4x + (-3x + -15) Reorder the terms: 7(-3 + x) = 4x + (-3x + -15) (-3 * 7 + x * 7) = 4x + (-3x + -15) (-21 + 7x) = 4x + (-3x + -15) Reorder the terms: -21 + 7x = 4x + (-15 + -3x) Remove parenthesis around (-15 + -3x) -21 + 7x = 4x + -15 + -3x Reorder the terms: -21 + 7x = -15 + 4x + -3x Combine like terms: 4x + -3x = 1x -21 + 7x = -15 + 1x Solving -21 + 7x = -15 + 1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. -21 + 7x + -1x = -15 + 1x + -1x Combine like terms: 7x + -1x = 6x -21 + 6x = -15 + 1x + -1x Combine like terms: 1x + -1x = 0 -21 + 6x = -15 + 0 -21 + 6x = -15 Add '21' to each side of the equation. -21 + 21 + 6x = -15 + 21 Combine like terms: -21 + 21 = 0 0 + 6x = -15 + 21 6x = -15 + 21 Combine like terms: -15 + 21 = 6 6x = 6 Divide each side by '6'. x = 1 Simplifying x = 1
| -7(4x+-7)=105 | | .8333(6x+12)+1=.666(9x-3)+4 | | 3x+2y+.5z=20 | | 6r/9 | | (X-4/2)+(X+9/3)=5/2 | | 3x+2y+.5=20 | | 5t^4+20t^2-108t+20=0 | | 1/4(4+x) | | 2500+100*x=1800+120*x | | 2x-8+6=4x+12-3 | | 2x^2-8=18 | | -8x-(3x+6)=4-1 | | 2(x+2)+5=9 | | x^4+3x-29=0 | | 5-6(5x+3)=3 | | x^3-3x^2=10x | | 3x+2y+1/2z=20 | | 12(450+x)=300 | | 3x+2y+1/2z | | 3x+2y+cz=20 | | (5x+4)/x2+3x-10 | | 2x^5-64=0 | | x/6-10=5/12 | | 2x^3-20x^2-7000=0 | | 5-4y=29 | | -5/6(-6w-30) | | -2(6x+6)= | | 7x+4x+9x-6= | | 20x-6= | | 3(4a-5)+4(2a+3)= | | 11-5*n=19 | | 12w-3w=9w-12+25 |