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Simplifying 7(2x + 4) + 7x = 14x + 14 Reorder the terms: 7(4 + 2x) + 7x = 14x + 14 (4 * 7 + 2x * 7) + 7x = 14x + 14 (28 + 14x) + 7x = 14x + 14 Combine like terms: 14x + 7x = 21x 28 + 21x = 14x + 14 Reorder the terms: 28 + 21x = 14 + 14x Solving 28 + 21x = 14 + 14x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14x' to each side of the equation. 28 + 21x + -14x = 14 + 14x + -14x Combine like terms: 21x + -14x = 7x 28 + 7x = 14 + 14x + -14x Combine like terms: 14x + -14x = 0 28 + 7x = 14 + 0 28 + 7x = 14 Add '-28' to each side of the equation. 28 + -28 + 7x = 14 + -28 Combine like terms: 28 + -28 = 0 0 + 7x = 14 + -28 7x = 14 + -28 Combine like terms: 14 + -28 = -14 7x = -14 Divide each side by '7'. x = -2 Simplifying x = -2
| 78.918x+80.916(1+-x)=79.904 | | t/a=400/20 | | 7+2x-4=3x-3 | | 198=50-u | | 80.916x+78.918(1+-x)=79.904 | | 3-2x+4=5+4x-6 | | 5x+4=-3+(-2) | | 39+0.10x=99 | | 6(7x-8)-4x=142 | | (5y+-4)(3-y)=0 | | 15y=2y+28 | | 5b+3-8=-10 | | 3.4(3x+2.1)=3x | | x^3+4=8-x | | x+3+12+x=13 | | -3(a-7)=6 | | (3x-2)+(9x-29)= | | 4k-5k=-1 | | 10c^2-23c-5=0 | | 2x-x+6=18 | | 5rv-sv=2r | | 80.916x+79.918(1+-1x)=79.904 | | 19+(-3)=x+3 | | 19-(x+6)=5x-5 | | 3+2(r+2)=9+r | | 4i-(7-4i)= | | 12z+6z=273 | | -5n+2n=0 | | 4D^2+8D-10=0 | | 3x^2+6x-2.4=0 | | 78.918x+80.916(1+-1x)=79.904 | | 5v-sv=2r |