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Simplifying (2x + -7) + -1(x + 8) = 15 Reorder the terms: (-7 + 2x) + -1(x + 8) = 15 Remove parenthesis around (-7 + 2x) -7 + 2x + -1(x + 8) = 15 Reorder the terms: -7 + 2x + -1(8 + x) = 15 -7 + 2x + (8 * -1 + x * -1) = 15 -7 + 2x + (-8 + -1x) = 15 Reorder the terms: -7 + -8 + 2x + -1x = 15 Combine like terms: -7 + -8 = -15 -15 + 2x + -1x = 15 Combine like terms: 2x + -1x = 1x -15 + 1x = 15 Solving -15 + 1x = 15 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + 1x = 15 + 15 Combine like terms: -15 + 15 = 0 0 + 1x = 15 + 15 1x = 15 + 15 Combine like terms: 15 + 15 = 30 1x = 30 Divide each side by '1'. x = 30 Simplifying x = 30
| 75x=296 | | x-412.74=53.13 | | 2x^2+5x=173 | | -4.4x+48.774=-7.8(0.6x-1.82)-6.5x | | 4sin+3cos=0 | | 42=6p+3 | | x.4=2x.8 | | 8x+20=13x | | -1.3x=39 | | Log[x]=3.15 | | 0.8*0.6= | | 2x^2+5=173 | | 2(x-5)+3=x-1 | | 48+8x=168 | | -68=10-3x | | x+2x*5+(x+5*10)=470 | | 3y-3=15 | | -10x-6x=16 | | x*1+2x*5+x+5*10=470 | | 15-(24-x)=72 | | 7x^5-10x^5= | | 4.1(5.8r-0.3)=-43.051155+8.689r | | 4.1(5.8r-0.3)=-43.051155+8.689 | | 1x=1/5 | | x-0.3=-5 | | 12(3x+1)=156 | | x+2x=232 | | 4(4x+3)-3(x-4)=x+4 | | 3x-8+5x+10=180 | | 9x+8=3x-7-4x | | 6x-12y=-7 | | 7h-26=30 |