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Kissy
Mathematics
28 December, 09:24
Solve for x: - 4/3x+7=31
solve for x: 3/7-2/7x=1/7
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Cash Ballard
28 December, 09:26
0
First Problem;
Simplify 4/3x to 4x/3
-4x/3 + 7 = 31
Subtract 7 from both sides
-4x/3 = 31 - 7
Simplify 31 - 7 to 24
-4x/3 = 24
Multiply both sides by 3
-4x = 24 * 3
Simplify 24 * 3 to 72
-4x = 72
Divide both sides by - 4
x = - 72/4
Simplify 72/4 to 18
x = - 18
Seond problem;
Simplify 2/7x to 2x/7
3/7 - 2x/7 = 1/7
Join the denominators
3 - 2x/7 = 1/7
Multiply both sides by 7
3 - 2x = 1/7 * 7
Simplify 1/7 * 7 to 1
3 - 2x = 1
Subtract 3 from both sides
-2x = 1 - 3
Simplify 1 - 3 to - 2
-2x = - 2
Divide both sides by - 2
x = 1
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