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Simplifying 3(2x + -5) + -1(4x + -7) = 20 Reorder the terms: 3(-5 + 2x) + -1(4x + -7) = 20 (-5 * 3 + 2x * 3) + -1(4x + -7) = 20 (-15 + 6x) + -1(4x + -7) = 20 Reorder the terms: -15 + 6x + -1(-7 + 4x) = 20 -15 + 6x + (-7 * -1 + 4x * -1) = 20 -15 + 6x + (7 + -4x) = 20 Reorder the terms: -15 + 7 + 6x + -4x = 20 Combine like terms: -15 + 7 = -8 -8 + 6x + -4x = 20 Combine like terms: 6x + -4x = 2x -8 + 2x = 20 Solving -8 + 2x = 20 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 2x = 20 + 8 Combine like terms: -8 + 8 = 0 0 + 2x = 20 + 8 2x = 20 + 8 Combine like terms: 20 + 8 = 28 2x = 28 Divide each side by '2'. x = 14 Simplifying x = 14
| 0.05a+0.01(90)=0.2(a+90) | | 23=8n-7+7n | | 7x-5=11 | | 20=3x-8x | | 3(2x-4)-(4x+2)=7 | | 3x+4=25 | | -4(8+5x)=-132 | | 127=p+7(p+9) | | (8.1)(4.5)= | | 9x-15=4x-60 | | -24=2(x+3)-10 | | 10x+8=10+8x | | -123=9(n-3)-6 | | X+19=20x | | 3x^12=0 | | -3(2s-5)-15=-2(8s+10)-2 | | 6(-4-8k)=456 | | 11+4x=6x+3 | | -133=-7(1-9x) | | 2(x+2)=-2(3x+6) | | -4(2t+9)=-4 | | 4(x-3)+2=-3(3x-2) | | 5(f-4)=-30 | | 10+10(1-3x)=-190 | | 2x+4x-5=3(x-2) | | (e+3)+3=24 | | -3(x+1)-4x=5x-5 | | 29x+88=29x+62 | | 2p+3=1 | | -27=-6p+15 | | 5+2(2x-4)=16 | | x+5=6x+20 |