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Simplifying 7(x + -3) = 3x + 3(x + -2) Reorder the terms: 7(-3 + x) = 3x + 3(x + -2) (-3 * 7 + x * 7) = 3x + 3(x + -2) (-21 + 7x) = 3x + 3(x + -2) Reorder the terms: -21 + 7x = 3x + 3(-2 + x) -21 + 7x = 3x + (-2 * 3 + x * 3) -21 + 7x = 3x + (-6 + 3x) Reorder the terms: -21 + 7x = -6 + 3x + 3x Combine like terms: 3x + 3x = 6x -21 + 7x = -6 + 6x Solving -21 + 7x = -6 + 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. -21 + 7x + -6x = -6 + 6x + -6x Combine like terms: 7x + -6x = 1x -21 + 1x = -6 + 6x + -6x Combine like terms: 6x + -6x = 0 -21 + 1x = -6 + 0 -21 + 1x = -6 Add '21' to each side of the equation. -21 + 21 + 1x = -6 + 21 Combine like terms: -21 + 21 = 0 0 + 1x = -6 + 21 1x = -6 + 21 Combine like terms: -6 + 21 = 15 1x = 15 Divide each side by '1'. x = 15 Simplifying x = 15
| t=-6.25ln(1-n/80) | | 7w-4w+8w= | | 302-249= | | x^2-14x+49=15 | | 7y-2y-8y= | | 45+896= | | x^2-14+49=15 | | 4a+3b+c=18 | | 7r/8=(-15-10)/3 | | 10x-5y=65 | | -y-1=-15+0.75y | | -5-4z+2-z= | | 90=20+5u | | 24-(x)=(-16) | | 9/11x+4=16 | | 62=4z-9 | | 24-x=(-16) | | 5y+8=13y+17 | | (y^2-5y/4y)*(5y^2/y^2+2y) | | 5x^2=17x+19 | | 5x^2=a | | 9[3-(3x-7)]+7x=0 | | 4(12+z)-z=(-9) | | 5+7c=61 | | -7.2+3w-5w=-3.5w | | 125=8y^3 | | 27=6w+w^2 | | 9[3-(3x-7)]+7x= | | 0.45u+0.6(4u)-3.5(7u-5.5)=-(20u+22) | | 6x^3+4x^2+8x+10=0 | | 5(4x-2)+8=-1 | | 14r-12-17r+5= |