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Simplifying 2 + -6 + -1(3 + -1x) = 21 + -7x 2 + -6 + (3 * -1 + -1x * -1) = 21 + -7x 2 + -6 + (-3 + 1x) = 21 + -7x Combine like terms: 2 + -6 = -4 -4 + -3 + 1x = 21 + -7x Combine like terms: -4 + -3 = -7 -7 + 1x = 21 + -7x Solving -7 + 1x = 21 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -7 + 1x + 7x = 21 + -7x + 7x Combine like terms: 1x + 7x = 8x -7 + 8x = 21 + -7x + 7x Combine like terms: -7x + 7x = 0 -7 + 8x = 21 + 0 -7 + 8x = 21 Add '7' to each side of the equation. -7 + 7 + 8x = 21 + 7 Combine like terms: -7 + 7 = 0 0 + 8x = 21 + 7 8x = 21 + 7 Combine like terms: 21 + 7 = 28 8x = 28 Divide each side by '8'. x = 3.5 Simplifying x = 3.5
| y=(2-5k)x | | 5b+2=2b+7 | | 7x-1.8=3x+1.4 | | 2b=3b | | 4*(x+5)+8=4x | | 2*(x+3)+4*(x-5)=-14 | | 2(x+3)+4(x-5)=-14 | | x-1.4=0 | | 5x+6=5x+45 | | 5x+6=5x+31 | | -15x+2x=-11 | | 14x-6x^2+3=0 | | 14x(-43)+7=83 | | 14x+4=5x+13 | | 3w-1+3(2w+1)=-5(w+2) | | 5(x-6)-5=-7(-2x+7)-5x | | h(2h+7)= | | -2(x+3)=-2(9x-1)+2x | | 8v-21=2v-9 | | 18w-5w+29=6w-27 | | 2v+5=4v+13 | | 15x^2=2x-1 | | 1=2x/x-2 | | 2n^2+3x-5=0 | | 6+(-2)= | | 2y^2+5y+2=8+4y | | 11p-7=2p+1 | | 6x=12+2x | | (-5)(-3)(-2)-(-3)= | | 7.6+(-8.2)= | | 3+2m-1=6m+12-2m | | -2=3x^2+5x |