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Simplifying 2x + -1(x + 1) = -4 + 3(x + -7) Reorder the terms: 2x + -1(1 + x) = -4 + 3(x + -7) 2x + (1 * -1 + x * -1) = -4 + 3(x + -7) 2x + (-1 + -1x) = -4 + 3(x + -7) Reorder the terms: -1 + 2x + -1x = -4 + 3(x + -7) Combine like terms: 2x + -1x = 1x -1 + 1x = -4 + 3(x + -7) Reorder the terms: -1 + 1x = -4 + 3(-7 + x) -1 + 1x = -4 + (-7 * 3 + x * 3) -1 + 1x = -4 + (-21 + 3x) Combine like terms: -4 + -21 = -25 -1 + 1x = -25 + 3x Solving -1 + 1x = -25 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -1 + 1x + -3x = -25 + 3x + -3x Combine like terms: 1x + -3x = -2x -1 + -2x = -25 + 3x + -3x Combine like terms: 3x + -3x = 0 -1 + -2x = -25 + 0 -1 + -2x = -25 Add '1' to each side of the equation. -1 + 1 + -2x = -25 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = -25 + 1 -2x = -25 + 1 Combine like terms: -25 + 1 = -24 -2x = -24 Divide each side by '-2'. x = 12 Simplifying x = 12
| 7a^2-30a+4= | | 144=x/(0.2-x)^2 | | 2-3x-5x=5-8x+x | | (x+5)-2(3-5x)=6(x+5)-1 | | -4x=101/2 | | a^4-14a^3+48a^2= | | (4-5i)/(5-i) | | 35=5x+7 | | 246-41m= | | 30=7x | | D(d-2)+5(d-2)= | | 4x+2(x-1)=5x-19+2x | | -54=7x-12 | | (4x^2+36)-36= | | 111=y-9 | | -5=-2x+5 | | 8(4-2a)+7(4a-7)= | | X=-8-9 | | n=400.00-190-7 | | 8x-4(x-2)=-3+6x+7 | | X+-7=-9 | | (51-40)1.5m=252.36 | | 3x^2-2x-77=0 | | x^3-5X-5=0 | | 4+y=-9 | | 1+y=-9 | | 4/x=22 | | 4y-8+y+16=6+8y+14-6y | | 190+n/7=400.00 | | 25rs^2-10rs+r= | | 2w(w-2)=54 | | 10/4=5/y |