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Simplifying (X) + (x + 1) + (x + 2) = 87 X + (x + 1) + (x + 2) = 87 Reorder the terms: X + (1 + x) + (x + 2) = 87 Remove parenthesis around (1 + x) X + 1 + x + (x + 2) = 87 Reorder the terms: X + 1 + x + (2 + x) = 87 Remove parenthesis around (2 + x) X + 1 + x + 2 + x = 87 Reorder the terms: 1 + 2 + X + x + x = 87 Combine like terms: 1 + 2 = 3 3 + X + x + x = 87 Combine like terms: x + x = 2x 3 + X + 2x = 87 Solving 3 + X + 2x = 87 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + X + -3 + 2x = 87 + -3 Reorder the terms: 3 + -3 + X + 2x = 87 + -3 Combine like terms: 3 + -3 = 0 0 + X + 2x = 87 + -3 X + 2x = 87 + -3 Combine like terms: 87 + -3 = 84 X + 2x = 84 Add '-2x' to each side of the equation. X + 2x + -2x = 84 + -2x Combine like terms: 2x + -2x = 0 X + 0 = 84 + -2x X = 84 + -2x Simplifying X = 84 + -2x
| 8x+6+x= | | (-54)-8x=-7x+21 | | 6x+3=8x+21 | | 100/28= | | 4.9X+54.5=4.5-7.6X | | ln(x+4)=5y+lnC | | 17x=2.50x+50000 | | 21=17+x | | 2x-(2/3)=-3x+(7/3) | | 65=3c-7 | | 1/2d-3=5 | | 2x^2+24x+63=0 | | (m+8)=16 | | -10x8y/5x5y3 | | -14/13y-7=6 | | 24-4m=12 | | 9a^2+5ab-4b^2=0 | | -n=m-6 | | d-7=2d-1 | | 5x+6=3x-14 | | n+1=-15 | | 7+14M-1=9M+17-6M | | 13z-7z=24 | | 1/2x-3/4=8/10 | | 2-5n+n-8=2(1-5n)-(8+4n) | | (W+3)/3=(4w+6)/4 | | -6b+6=6-6b | | -6b+6-6=6-6b | | 7+14M-11=9M+17-6M | | -3y+7.569=24.69 | | 3.2+1.9x-1.4x=7.3-2.1 | | 18=18 |