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Simplifying 12x + 7 = 7x + 42 Reorder the terms: 7 + 12x = 7x + 42 Reorder the terms: 7 + 12x = 42 + 7x Solving 7 + 12x = 42 + 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 + 12x + -7x = 42 + 7x + -7x Combine like terms: 12x + -7x = 5x 7 + 5x = 42 + 7x + -7x Combine like terms: 7x + -7x = 0 7 + 5x = 42 + 0 7 + 5x = 42 Add '-7' to each side of the equation. 7 + -7 + 5x = 42 + -7 Combine like terms: 7 + -7 = 0 0 + 5x = 42 + -7 5x = 42 + -7 Combine like terms: 42 + -7 = 35 5x = 35 Divide each side by '5'. x = 7 Simplifying x = 7
| 18c+20c= | | 2x-6-13x=71 | | 2(5k+3)-12k+6+3= | | 4(x+5)-7=2(x+3) | | 9(R+7)+12*R= | | 2t+6-4= | | 4(3-3x)-8x=15-2(5x+8) | | -2k+3k-4+2k= | | 7(-2+1)=-15c+3(-13c-11) | | -9(2g-13)=-12g+9 | | 9(R+7)+12R= | | p-2p= | | -4-(2-6p)= | | 2(-9u+9)=-16u-8 | | 13r+s-20r+20s= | | -4(10z+4)=-6(-8+12z) | | 14x+6=-22 | | -0.2(x+1)=0.3(x+11) | | 10q=5(-8q-10) | | -3(4y-8)+2(2y+10)= | | 3x^2+12x+5=0 | | -3.82-2.6k=3.95+1.3k-1.8k | | 4(-xy^6)(x^2y)= | | -9a+10w= | | -8.9d-1.67=-8.8d | | -6(n-3)+4(n+1)= | | -9c+12=-5+6c | | x-(0.5x+2.6)=17.6 | | -8(x+2)=2(x-13) | | 8x+5=5x+26 | | -15v+16q= | | 3.5p+9.44=-17.57-3.8p |