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Simplifying (7x + 2) + (2x + -1) = 64 Reorder the terms: (2 + 7x) + (2x + -1) = 64 Remove parenthesis around (2 + 7x) 2 + 7x + (2x + -1) = 64 Reorder the terms: 2 + 7x + (-1 + 2x) = 64 Remove parenthesis around (-1 + 2x) 2 + 7x + -1 + 2x = 64 Reorder the terms: 2 + -1 + 7x + 2x = 64 Combine like terms: 2 + -1 = 1 1 + 7x + 2x = 64 Combine like terms: 7x + 2x = 9x 1 + 9x = 64 Solving 1 + 9x = 64 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 9x = 64 + -1 Combine like terms: 1 + -1 = 0 0 + 9x = 64 + -1 9x = 64 + -1 Combine like terms: 64 + -1 = 63 9x = 63 Divide each side by '9'. x = 7 Simplifying x = 7
| 3(-8-4r)+1=-2(6r-7)+8 | | 4x^2+24x+108=0 | | 7x-2+x=60 | | 16=r+17 | | -10=(2w-4) | | 5+3x=x+17 | | 4x-5y-3x+7y= | | 4(10-9n)=4n-8(5n-5) | | .25p=24 | | 2v^2+21v+54=0 | | -2(D+6)=-6 | | 2x-11=-3+2x | | 19+=-4 | | 4x+18=48 | | -3x+6y+2x-8y= | | 1-9+10+121= | | 15-(6-7x)=2+6x | | -8(8v+6)=8(7v-6) | | 12=-4x-8 | | 1.2t+6=-7 | | -8(8v+6)=(7v-6) | | 24+5x=-4(4x-4)+8 | | r(z^3-7)+(z^3-7)= | | x-4y=-5 | | 0.20x+0.05(2-x)=0.10(-8) | | -9=-7m+1-6 | | 4b-5+(-a-3)i=7-8i | | (x+2)+72=180 | | X-3y-2x+y= | | 228=19k | | -3(8-8k)=-8+3(8k-5) | | (x+72)+72=180 |