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Keon
Mathematics
23 January, 22:04
Solve the equation. 2x - 3 + 4x = 21
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Ximena
23 January, 22:14
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Add 3 to each side, then cross out the three. The equation can be rewritten as 2x+4x=24
2x plus 4x is 6x, making our equation 6x=24.
Divide by 6 on each side to get the answer x is 4. Your answer is 4
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Lillianna Howell
23 January, 22:34
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Simplifying 2x + - 3 + 4x = 21
Reorder the terms: - 3 + 2x + 4x = 21
Combine like terms: 2x + 4x = 6x - 3 + 6x = 21
Solving - 3 + 6x = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. - 3 + 3 + 6x = 21 + 3
Combine like terms: - 3 + 3 = 0 0 + 6x = 21 + 3 6x = 21 + 3
Combine like terms: 21 + 3 = 24 6x = 24
Divide each side by '6'.
x = 4
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