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Simplifying 7x + -1(5x + 4) = 4x + -20 Reorder the terms: 7x + -1(4 + 5x) = 4x + -20 7x + (4 * -1 + 5x * -1) = 4x + -20 7x + (-4 + -5x) = 4x + -20 Reorder the terms: -4 + 7x + -5x = 4x + -20 Combine like terms: 7x + -5x = 2x -4 + 2x = 4x + -20 Reorder the terms: -4 + 2x = -20 + 4x Solving -4 + 2x = -20 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. -4 + 2x + -4x = -20 + 4x + -4x Combine like terms: 2x + -4x = -2x -4 + -2x = -20 + 4x + -4x Combine like terms: 4x + -4x = 0 -4 + -2x = -20 + 0 -4 + -2x = -20 Add '4' to each side of the equation. -4 + 4 + -2x = -20 + 4 Combine like terms: -4 + 4 = 0 0 + -2x = -20 + 4 -2x = -20 + 4 Combine like terms: -20 + 4 = -16 -2x = -16 Divide each side by '-2'. x = 8 Simplifying x = 8
| f(-x)=8x+5 | | -19+5q=6q | | -9*1-7y=63 | | -10-7f=8-9f | | V^2-5=-8-2v^2 | | 4(2x-9)=4x-1+3x | | 1.2(1+7.8n)-0.1(6.1n+7.8)=1.2+5.8n+5.8n+2.4 | | 4g+3(-3+2g)=1-g | | 9-4w=-4w+7 | | -11t=-18-8t | | 4v=4-5v | | (x+5)=8x+5 | | 6(9y-4)-[3(4y-3)+5]= | | -2j+2j=0 | | 3(x-4)+5=-4 | | 8(x+5)=5(x-13) | | x/2+11=73 | | 5x+5=5(x+6) | | 2-2p=7-p | | x/4x2+11=73 | | 10m+2=32 | | 0.122222= | | 10-7x=2(4x-4)+3 | | 0=-9n+9n | | 12-54=-48 | | 13-14g=-14g+13 | | a=3.14(100) | | 9.1x=8 | | 6g+2(-3+4g)=1-g | | -18v=14-17v | | 25-9+-30= | | (1.7)(1.8)/7.4=(2.2)x/2.5 |