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Simplifying 90 = x + 2 + 3x Reorder the terms: 90 = 2 + x + 3x Combine like terms: x + 3x = 4x 90 = 2 + 4x Solving 90 = 2 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 90 + -4x = 2 + 4x + -4x Combine like terms: 4x + -4x = 0 90 + -4x = 2 + 0 90 + -4x = 2 Add '-90' to each side of the equation. 90 + -90 + -4x = 2 + -90 Combine like terms: 90 + -90 = 0 0 + -4x = 2 + -90 -4x = 2 + -90 Combine like terms: 2 + -90 = -88 -4x = -88 Divide each side by '-4'. x = 22 Simplifying x = 22
| x/21=25/75 | | 5/2=-20 | | 56w^3+156w^2+40w=0 | | 16/2-2=w | | m+(m-3)+2m=57 | | 2x=44444 | | -5(10)+7=s | | 50r^4+145r^3+105r^2=0 | | h=(13+6)(2) | | 9x-4[6(x+4)-(x-6)]-3= | | 1200=5b-(500+2b) | | 15-3(5)=n | | 5/20=-20 | | 72+81h= | | e^8x=8 | | 15-13-5z= | | 12/5=6v | | 7/8u=28 | | 36u^2-81v^2=0 | | 5y(8y+9)+y(2y+2)= | | 49y^2-28y+4=0 | | KD=S | | h=3q+3z | | KS=D | | 12x+13=8x+33 | | p^2+2p-80=0 | | 3x-1/4-x-5/5-2 | | x^2+20x+11= | | 21(5+x)=2 | | 10(2+7e)= | | 2[8-(2-8K)]= | | p^22+2p-80=0 |