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Simplifying 3x + 15 + 4x + -20 = 90 Reorder the terms: 15 + -20 + 3x + 4x = 90 Combine like terms: 15 + -20 = -5 -5 + 3x + 4x = 90 Combine like terms: 3x + 4x = 7x -5 + 7x = 90 Solving -5 + 7x = 90 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 + 7x = 90 + 5 Combine like terms: -5 + 5 = 0 0 + 7x = 90 + 5 7x = 90 + 5 Combine like terms: 90 + 5 = 95 7x = 95 Divide each side by '7'. x = 13.57142857 Simplifying x = 13.57142857
| 3x+15+4x-20=180 | | 3x+154x-20=180 | | 13-4x=-18+3x | | -12(x-1)+5(3x-1)-8=2(2-x)+9x | | 2(6x+19y)= | | X+2x+4x+y=360 | | 2(6x+19)= | | 35(c+2)=385-85 | | 3(m+6)=3 | | 3y-14=2 | | x+3x=350 | | 3x-4=2x+8+-5x | | 5.6x+025=31.36+45x | | -3(5x-7)=5x+4 | | 4.9x^2-12x+3.81=0 | | (3x+2)(x-4)(x)=2 | | 100c=150 | | -4(-2x+10)=x+3 | | 3x-5-x+9= | | 720=2x^2+6x | | 2w+10y+10x+2x-15y+4w= | | 4p-4=2p+10 | | 1ox=55 | | -5(-10x+8)=x+2 | | Sin25=3/X | | -10(s+5)=-29 | | 7y+4x-4=0 | | 2x^2+x-7=x^2+7x-16 | | 4(3x-2)=x+9 | | 3(4s+3)=93 | | 8(2x+4y)= | | 5(2l+5)=95 |