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one way to solve an equation in this format, "a/b = c/d", is to multiply both sides by "b"and by "d". You're effectively "cross multiplying" the fractions:
(2x + 1) / 3x = (x - 1) / 5x ∴(2x + 1)(5x) = (x - 1)(3x) ∴10x2 + 5x = 3x2 - 3x
You can then factor an "x" out of both sides
∴10x + 5 = 3x - 3
And rearrange to solve:
∴10x - 3x = -3 -5 ∴7x = -8
∴x = -8/7
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How do you solve x plus 13 over 20?
To solve for x, we'd have to know what this expression equals.
How do you solve x over 3 equals 4?
x=12
Solve the proportion 3 over 8 equals x over 40?
Is it 15 over 40?
Solve proportion 4 over 9 equals x over 72?
X = 32
Solve the equation four over nine times x equals?
(4/9) x = That's not an equation. If there were a number after the 'equals' sign, then we could calculate the value of 'x'. But as it is, there's no question there, so there's nothing to solve.
How do you solve x plus 13 over 20?
To solve for x, we'd have to know what this expression equals.
Can you solve d over-7 equals 28?
d = -196
How do you solve x over 3 equals 4?
x=12
Solve for indicated letter b equals 8c for c?
c equals b over 8
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It equals 2 over 8.
Solve the proportion 3 over 8 equals x over 40?
Is it 15 over 40?
Solve the proportion 1 over 8 equals x over 72?
x is 9.
Solve proportion 4 over 9 equals x over 72?
X = 32
Solve equation 32x-1 equals 5-3x-2?
x equals 4 over 35
Solve for z z over 12 equals -60?
72
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n=-4/3
Solve for m 5m over 8 -6 over 8 plus 3m over 8 equals 2 over 8?
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