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Maths Puzzle
Numerical Ability
1.)four shovels of sand are used for every 5 shovels of gravel in making concrete.how much gravel is needed for 64 shovels of sand?
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7a-3=3-2a
This is what we came up with. Not coming out right.
7a-3+3=3-2a+3
7a=2a
Can you help me solve this equation? -3x+5=2x-10