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Simplifying 7(x + 1) = 4(x + -3(-1x)) Reorder the terms: 7(1 + x) = 4(x + -3(-1x)) (1 * 7 + x * 7) = 4(x + -3(-1x)) (7 + 7x) = 4(x + -3(-1x)) Remove parenthesis around (-1x) 7 + 7x = 4(x + -3 * -1x) Multiply -3 * -1 7 + 7x = 4(x + 3x) Combine like terms: x + 3x = 4x 7 + 7x = 4(4x) Remove parenthesis around (4x) 7 + 7x = 4 * 4x Multiply 4 * 4 7 + 7x = 16x Solving 7 + 7x = 16x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-16x' to each side of the equation. 7 + 7x + -16x = 16x + -16x Combine like terms: 7x + -16x = -9x 7 + -9x = 16x + -16x Combine like terms: 16x + -16x = 0 7 + -9x = 0 Add '-7' to each side of the equation. 7 + -7 + -9x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9x = 0 + -7 -9x = 0 + -7 Combine like terms: 0 + -7 = -7 -9x = -7 Divide each side by '-9'. x = 0.7777777778 Simplifying x = 0.7777777778
| 18=-28x-16x+40 | | (2x-4)x(x)=96 | | 249-x=122 | | x-40x=350 | | P=2[4+(p-13)] | | x-(x-15)-(x*0.15)=40 | | 6(8n+10)+8n= | | x-[x-(x-15)]-(x*0.15)=40 | | y=70+-35 | | 70=y-35 | | t=(f+k)x | | 135+85+93+135= | | x-(x-(x-15))-(x*0.15)=40 | | a^2-5a-12=0 | | 5x-6x=13 | | Cm=0.245m | | 10+13x+4x^2=0 | | 9u+23=-2(2-6) | | X(2x)=72 | | 10.5=logx | | 4(3x+1)=16 | | 4(8n+3)-5=2(6n+8+1) | | m^2-9m-55=0 | | x-9y=19fory | | 120+15x+5x=200 | | (x-4)(3x+3)=(x+2)(x+6) | | 12=5p+10 | | -9+2q=1 | | 2(2+8d)= | | x^2+8.8x+72.25=0 | | (5x^2-4x+12)+(6x^2+9x-86)= | | 3-f=9 |