Heather put some money aside in an envelope for small household expenses. Yester

Question

Heather put some money aside in an envelope for small household expenses. Yesterday she took out $20 for her groceries. Today a friend paid back a line and heather put $25 in the envelope. Now she has $45 in the envelope. How much was in the envelope at the start? Heather put some money aside in an envelope for small household expenses. Yesterday she took out $20 for her groceries. Today a friend paid back a line and heather put $25 in the envelope. Now she has $45 in the envelope. How much was in the envelope at the start?

Explanation / Answer

Let at the start the money be 'x' in the envelop

Money left in the envelop after she took 20 for the groceries be = x - 20

Money in the envelop after his friend paid 25 be = x - 20 + 25 = x + 5

x + 5 = 45

or, x = 40

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