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Simplifying 5(2x + 4) = (3x + 7) Reorder the terms: 5(4 + 2x) = (3x + 7) (4 * 5 + 2x * 5) = (3x + 7) (20 + 10x) = (3x + 7) Reorder the terms: 20 + 10x = (7 + 3x) Remove parenthesis around (7 + 3x) 20 + 10x = 7 + 3x Solving 20 + 10x = 7 + 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. 20 + 10x + -3x = 7 + 3x + -3x Combine like terms: 10x + -3x = 7x 20 + 7x = 7 + 3x + -3x Combine like terms: 3x + -3x = 0 20 + 7x = 7 + 0 20 + 7x = 7 Add '-20' to each side of the equation. 20 + -20 + 7x = 7 + -20 Combine like terms: 20 + -20 = 0 0 + 7x = 7 + -20 7x = 7 + -20 Combine like terms: 7 + -20 = -13 7x = -13 Divide each side by '7'. x = -1.857142857 Simplifying x = -1.857142857
| (-18/13)=(x/221) | | (n-2)+n=90 | | 21x^2+13x+-20=0 | | 4x^2-9y=-5 | | Y/-4-6=5 | | 2x=(5-2) | | 20=5-(y+6) | | T=l(3+rs) | | -3-9=10x+10-9x | | 3656-x=1828 | | -5x-5x=97-7 | | (6x+5)(3x-8)= | | 13-(5+x)=6 | | 4.2x-33.6=1.4x | | 6+5=8 | | 5x^3-15x^2/5x-15 | | x+13=90 | | 6x+5*3x-8= | | 5z=16-21 | | x+13=180 | | (x-2)(x+3)=13x-5 | | 4x+13-2x+35=180 | | -2.4n+1.1n=-1.43 | | r(x)=x^2-2x+9 | | 18z+2Z=20 | | (-18/13)*221= | | 4x+13-2x+35=90 | | N+(n-2)+90=180 | | x-2(x^(1/2))-15 | | 21c+10=9 | | -1+19=m-9 | | 40=-(5y-10)+5 |